- dtThe timestep size between solves
C++ Type:double
Controllable:No
Description:The timestep size between solves
SolutionTimeAdaptiveDT
Compute simulation timestep based on actual solution time.
The idea is to find the simulation time step such as the computational cost of a step is the lowest. The computational cost of a time step solve depends on many factors, this time stepper studies the time step dependence.
This time stepper tries to decrease the simulation time in every time step by reacting to changes in computational time. If the computational cost of a time step increases two steps in a row, then it will either lower or increase the time step, depending on what it did for those two previous steps. For example, if it increased the time steps twice in a row and the solve time increased, then it will attempt to decrease the time steps, for at least two steps, until the dynamic is reversed.
When changing the time step, it is modified using this equation
The sign of the update is chosen as explained above.
Example input syntax
[Executioner]
type = Transient
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.1
[../]
scheme = 'implicit-euler'
solve_type = 'PJFNK'
start_time = 0.0
num_steps = 5
[]
Input Parameters
- adapt_logFalseOutput adaptive time step log
Default:False
C++ Type:bool
Controllable:No
Description:Output adaptive time step log
- cutback_factor_at_failure0.5Factor to apply to timestep if a time step fails to converge.
Default:0.5
C++ Type:double
Controllable:No
Description:Factor to apply to timestep if a time step fails to converge.
- initial_direction1Direction for the first step. 1 for up... -1 for down.
Default:1
C++ Type:int
Controllable:No
Description:Direction for the first step. 1 for up... -1 for down.
- percent_change0.1Fraction to change the timestep by. Should be between 0 and 1
Default:0.1
C++ Type:double
Controllable:No
Description:Fraction to change the timestep by. Should be between 0 and 1
- reset_dtFalseUse when restarting a calculation to force a change in dt.
Default:False
C++ Type:bool
Controllable:No
Description:Use when restarting a calculation to force a change in dt.
Optional Parameters
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTruewhether or not to enable the time stepper
Default:True
C++ Type:bool
Controllable:Yes
Description:whether or not to enable the time stepper
Advanced Parameters
Input Files
- (modules/combined/examples/phase_field-mechanics/Pattern1.i)
- (modules/phase_field/examples/multiphase/DerivativeMultiPhaseMaterial.i)
- (modules/combined/examples/phase_field-mechanics/kks_mechanics_KHS.i)
- (test/tests/time_steppers/time_stepper_system/testRejectStep.i)
- (test/tests/executioners/executioner/sln-time-adapt.i)
- (modules/porous_flow/examples/groundwater/ex01.i)
- (modules/combined/examples/mortar/eigenstrain.i)
- (modules/phase_field/test/tests/GrandPotentialPFM/GrandPotentialMultiphase_AD.i)
- (test/tests/time_steppers/time_adaptive/time-adaptive.i)
- (modules/combined/examples/geochem-porous_flow/forge/porous_flow.i)
- (modules/combined/examples/phase_field-mechanics/Nonconserved.i)
- (modules/phase_field/examples/measure_interface_energy/1Dinterface_energy.i)
- (modules/combined/examples/phase_field-mechanics/Conserved.i)
- (modules/combined/examples/phase_field-mechanics/kks_mechanics_VTS.i)
- (modules/combined/examples/mortar/eigenstrain_action.i)
- (modules/richards/test/tests/buckley_leverett/bl02.i)
- (modules/phase_field/examples/grain_growth/grain_growth_2D_voronoi_newadapt.i)
- (test/tests/time_steppers/time_stepper_system/time_stepper_system_restart.i)
- (modules/phase_field/test/tests/GrandPotentialPFM/GrandPotentialMultiphase.i)
(test/tests/executioners/executioner/sln-time-adapt.i)
[Mesh]
type = GeneratedMesh
dim = 2
xmin = -1
xmax = 1
ymin = -1
ymax = 1
nx = 10
ny = 10
elem_type = QUAD4
[]
[Variables]
active = 'u'
[./u]
order = FIRST
family = LAGRANGE
[./InitialCondition]
type = ConstantIC
value = 0
[../]
[../]
[]
[Functions]
[./forcing_fn]
type = ParsedFunction
# dudt = 3*t^2*(x^2 + y^2)
expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
[../]
[./exact_fn]
type = ParsedFunction
expression = t*t*t*((x*x)+(y*y))
[../]
[]
[Kernels]
active = 'diff ie ffn'
[./ie]
type = TimeDerivative
variable = u
[../]
[./diff]
type = Diffusion
variable = u
[../]
[./ffn]
type = BodyForce
variable = u
function = forcing_fn
[../]
[]
[BCs]
active = 'all'
[./all]
type = FunctionDirichletBC
variable = u
boundary = '0 1 2 3'
function = exact_fn
[../]
[./left]
type = DirichletBC
variable = u
boundary = 3
value = 0
[../]
[./right]
type = DirichletBC
variable = u
boundary = 1
value = 1
[../]
[]
[Postprocessors]
[./l2_err]
type = ElementL2Error
variable = u
function = exact_fn
[../]
[./dt]
type = TimestepSize
[../]
[]
[Executioner]
type = Transient
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.1
[../]
scheme = 'implicit-euler'
solve_type = 'PJFNK'
start_time = 0.0
num_steps = 5
[]
[Outputs]
execute_on = 'timestep_end'
file_base = out_sta
exodus = true
[]
(modules/combined/examples/phase_field-mechanics/Pattern1.i)
#
# Pattern example 1
#
# Phase changes driven by a combination mechanical (elastic) and chemical
# driving forces. In this three phase system a matrix phase, an oversized and
# an undersized precipitate phase compete. The chemical free energy favors a
# phase separation into either precipitate phase. A mix of both precipitate
# emerges to balance lattice expansion and contraction.
#
# This example demonstrates the use of
# * ACMultiInterface
# * SwitchingFunctionConstraintEta and SwitchingFunctionConstraintLagrange
# * DerivativeParsedMaterial
# * ElasticEnergyMaterial
# * DerivativeMultiPhaseMaterial
# * MultiPhaseStressMaterial
# which are the components to se up a phase field model with an arbitrary number
# of phases
#
[Mesh]
type = GeneratedMesh
dim = 2
nx = 80
ny = 80
nz = 0
xmin = -20
xmax = 20
ymin = -20
ymax = 20
zmin = 0
zmax = 0
elem_type = QUAD4
[]
[GlobalParams]
# CahnHilliard needs the third derivatives
derivative_order = 3
enable_jit = true
displacements = 'disp_x disp_y'
[]
# AuxVars to compute the free energy density for outputting
[AuxVariables]
[./local_energy]
order = CONSTANT
family = MONOMIAL
[../]
[./cross_energy]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./local_free_energy]
type = TotalFreeEnergy
variable = local_energy
interfacial_vars = 'c'
kappa_names = 'kappa_c'
additional_free_energy = cross_energy
[../]
[./cross_terms]
type = CrossTermGradientFreeEnergy
variable = cross_energy
interfacial_vars = 'eta1 eta2 eta3'
kappa_names = 'kappa11 kappa12 kappa13
kappa21 kappa22 kappa23
kappa31 kappa32 kappa33'
[../]
[]
[Variables]
# Solute concentration variable
[./c]
order = FIRST
family = LAGRANGE
[./InitialCondition]
type = RandomIC
min = 0
max = 0.8
seed = 1235
[../]
[../]
# Order parameter for the Matrix
[./eta1]
order = FIRST
family = LAGRANGE
initial_condition = 0.5
[../]
# Order parameters for the 2 different inclusion orientations
[./eta2]
order = FIRST
family = LAGRANGE
initial_condition = 0.1
[../]
[./eta3]
order = FIRST
family = LAGRANGE
initial_condition = 0.1
[../]
# Mesh displacement
[./disp_x]
order = FIRST
family = LAGRANGE
[../]
[./disp_y]
order = FIRST
family = LAGRANGE
[../]
# Lagrange-multiplier
[./lambda]
order = FIRST
family = LAGRANGE
initial_condition = 1.0
[../]
[]
[Kernels]
# Set up stress divergence kernels
[./TensorMechanics]
[../]
# Cahn-Hilliard kernels
[./c_res]
type = CahnHilliard
variable = c
f_name = F
args = 'eta1 eta2 eta3'
[../]
[./time]
type = TimeDerivative
variable = c
[../]
# Allen-Cahn and Lagrange-multiplier constraint kernels for order parameter 1
[./deta1dt]
type = TimeDerivative
variable = eta1
[../]
[./ACBulk1]
type = AllenCahn
variable = eta1
args = 'eta2 eta3 c'
mob_name = L1
f_name = F
[../]
[./ACInterface1]
type = ACMultiInterface
variable = eta1
etas = 'eta1 eta2 eta3'
mob_name = L1
kappa_names = 'kappa11 kappa12 kappa13'
[../]
[./lagrange1]
type = SwitchingFunctionConstraintEta
variable = eta1
h_name = h1
lambda = lambda
[../]
# Allen-Cahn and Lagrange-multiplier constraint kernels for order parameter 2
[./deta2dt]
type = TimeDerivative
variable = eta2
[../]
[./ACBulk2]
type = AllenCahn
variable = eta2
args = 'eta1 eta3 c'
mob_name = L2
f_name = F
[../]
[./ACInterface2]
type = ACMultiInterface
variable = eta2
etas = 'eta1 eta2 eta3'
mob_name = L2
kappa_names = 'kappa21 kappa22 kappa23'
[../]
[./lagrange2]
type = SwitchingFunctionConstraintEta
variable = eta2
h_name = h2
lambda = lambda
[../]
# Allen-Cahn and Lagrange-multiplier constraint kernels for order parameter 3
[./deta3dt]
type = TimeDerivative
variable = eta3
[../]
[./ACBulk3]
type = AllenCahn
variable = eta3
args = 'eta1 eta2 c'
mob_name = L3
f_name = F
[../]
[./ACInterface3]
type = ACMultiInterface
variable = eta3
etas = 'eta1 eta2 eta3'
mob_name = L3
kappa_names = 'kappa31 kappa32 kappa33'
[../]
[./lagrange3]
type = SwitchingFunctionConstraintEta
variable = eta3
h_name = h3
lambda = lambda
[../]
# Lagrange-multiplier constraint kernel for lambda
[./lagrange]
type = SwitchingFunctionConstraintLagrange
variable = lambda
etas = 'eta1 eta2 eta3'
h_names = 'h1 h2 h3'
epsilon = 1e-6
[../]
[]
[Materials]
# declare a few constants, such as mobilities (L,M) and interface gradient prefactors (kappa*)
[./consts]
type = GenericConstantMaterial
prop_names = 'M kappa_c L1 L2 L3 kappa11 kappa12 kappa13 kappa21 kappa22 kappa23 kappa31 kappa32 kappa33'
prop_values = '0.2 0 1 1 1 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 '
[../]
# We use this to output the level of constraint enforcement
# ideally it should be 0 everywhere, if the constraint is fully enforced
[./etasummat]
type = ParsedMaterial
property_name = etasum
coupled_variables = 'eta1 eta2 eta3'
material_property_names = 'h1 h2 h3'
expression = 'h1+h2+h3-1'
outputs = exodus
[../]
# This parsed material creates a single property for visualization purposes.
# It will be 0 for phase 1, -1 for phase 2, and 1 for phase 3
[./phasemap]
type = ParsedMaterial
property_name = phase
coupled_variables = 'eta2 eta3'
expression = 'if(eta3>0.5,1,0)-if(eta2>0.5,1,0)'
outputs = exodus
[../]
# matrix phase
[./elasticity_tensor_1]
type = ComputeElasticityTensor
base_name = phase1
C_ijkl = '3 3'
fill_method = symmetric_isotropic
[../]
[./strain_1]
type = ComputeSmallStrain
base_name = phase1
displacements = 'disp_x disp_y'
[../]
[./stress_1]
type = ComputeLinearElasticStress
base_name = phase1
[../]
# oversized phase
[./elasticity_tensor_2]
type = ComputeElasticityTensor
base_name = phase2
C_ijkl = '7 7'
fill_method = symmetric_isotropic
[../]
[./strain_2]
type = ComputeSmallStrain
base_name = phase2
displacements = 'disp_x disp_y'
eigenstrain_names = eigenstrain
[../]
[./stress_2]
type = ComputeLinearElasticStress
base_name = phase2
[../]
[./eigenstrain_2]
type = ComputeEigenstrain
base_name = phase2
eigen_base = '0.02'
eigenstrain_name = eigenstrain
[../]
# undersized phase
[./elasticity_tensor_3]
type = ComputeElasticityTensor
base_name = phase3
C_ijkl = '7 7'
fill_method = symmetric_isotropic
[../]
[./strain_3]
type = ComputeSmallStrain
base_name = phase3
displacements = 'disp_x disp_y'
eigenstrain_names = eigenstrain
[../]
[./stress_3]
type = ComputeLinearElasticStress
base_name = phase3
[../]
[./eigenstrain_3]
type = ComputeEigenstrain
base_name = phase3
eigen_base = '-0.05'
eigenstrain_name = eigenstrain
[../]
# switching functions
[./switching1]
type = SwitchingFunctionMaterial
function_name = h1
eta = eta1
h_order = SIMPLE
[../]
[./switching2]
type = SwitchingFunctionMaterial
function_name = h2
eta = eta2
h_order = SIMPLE
[../]
[./switching3]
type = SwitchingFunctionMaterial
function_name = h3
eta = eta3
h_order = SIMPLE
[../]
[./barrier]
type = MultiBarrierFunctionMaterial
etas = 'eta1 eta2 eta3'
[../]
# chemical free energies
[./chemical_free_energy_1]
type = DerivativeParsedMaterial
property_name = Fc1
expression = '4*c^2'
coupled_variables = 'c'
derivative_order = 2
[../]
[./chemical_free_energy_2]
type = DerivativeParsedMaterial
property_name = Fc2
expression = '(c-0.9)^2-0.4'
coupled_variables = 'c'
derivative_order = 2
[../]
[./chemical_free_energy_3]
type = DerivativeParsedMaterial
property_name = Fc3
expression = '(c-0.9)^2-0.5'
coupled_variables = 'c'
derivative_order = 2
[../]
# elastic free energies
[./elastic_free_energy_1]
type = ElasticEnergyMaterial
base_name = phase1
f_name = Fe1
derivative_order = 2
args = 'c' # should be empty
[../]
[./elastic_free_energy_2]
type = ElasticEnergyMaterial
base_name = phase2
f_name = Fe2
derivative_order = 2
args = 'c' # should be empty
[../]
[./elastic_free_energy_3]
type = ElasticEnergyMaterial
base_name = phase3
f_name = Fe3
derivative_order = 2
args = 'c' # should be empty
[../]
# phase free energies (chemical + elastic)
[./phase_free_energy_1]
type = DerivativeSumMaterial
property_name = F1
sum_materials = 'Fc1 Fe1'
coupled_variables = 'c'
derivative_order = 2
[../]
[./phase_free_energy_2]
type = DerivativeSumMaterial
property_name = F2
sum_materials = 'Fc2 Fe2'
coupled_variables = 'c'
derivative_order = 2
[../]
[./phase_free_energy_3]
type = DerivativeSumMaterial
property_name = F3
sum_materials = 'Fc3 Fe3'
coupled_variables = 'c'
derivative_order = 2
[../]
# global free energy
[./free_energy]
type = DerivativeMultiPhaseMaterial
f_name = F
fi_names = 'F1 F2 F3'
hi_names = 'h1 h2 h3'
etas = 'eta1 eta2 eta3'
coupled_variables = 'c'
W = 3
[../]
# Generate the global stress from the phase stresses
[./global_stress]
type = MultiPhaseStressMaterial
phase_base = 'phase1 phase2 phase3'
h = 'h1 h2 h3'
[../]
[]
[BCs]
# the boundary conditions on the displacement enforce periodicity
# at zero total shear and constant volume
[./bottom_y]
type = DirichletBC
variable = disp_y
boundary = 'bottom'
value = 0
[../]
[./top_y]
type = DirichletBC
variable = disp_y
boundary = 'top'
value = 0
[../]
[./left_x]
type = DirichletBC
variable = disp_x
boundary = 'left'
value = 0
[../]
[./right_x]
type = DirichletBC
variable = disp_x
boundary = 'right'
value = 0
[../]
[./Periodic]
[./disp_x]
auto_direction = 'y'
[../]
[./disp_y]
auto_direction = 'x'
[../]
# all other phase field variables are fully periodic
[./c]
auto_direction = 'x y'
[../]
[./eta1]
auto_direction = 'x y'
[../]
[./eta2]
auto_direction = 'x y'
[../]
[./eta3]
auto_direction = 'x y'
[../]
[./lambda]
auto_direction = 'x y'
[../]
[../]
[]
[Preconditioning]
[./SMP]
type = SMP
full = true
[../]
[]
# We monitor the total free energy and the total solute concentration (should be constant)
[Postprocessors]
[./total_free_energy]
type = ElementIntegralVariablePostprocessor
variable = local_energy
[../]
[./total_solute]
type = ElementIntegralVariablePostprocessor
variable = c
[../]
[]
[Executioner]
type = Transient
scheme = bdf2
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -sub_pc_type'
petsc_options_value = 'asm ilu'
l_max_its = 30
nl_max_its = 10
l_tol = 1.0e-4
nl_rel_tol = 1.0e-8
nl_abs_tol = 1.0e-10
start_time = 0.0
num_steps = 200
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.1
[../]
[]
[Outputs]
execute_on = 'timestep_end'
exodus = true
[./table]
type = CSV
delimiter = ' '
[../]
[]
[Debug]
# show_var_residual_norms = true
[]
(modules/phase_field/examples/multiphase/DerivativeMultiPhaseMaterial.i)
[Mesh]
type = GeneratedMesh
dim = 2
nx = 40
ny = 40
nz = 0
xmin = -12
xmax = 12
ymin = -12
ymax = 12
elem_type = QUAD4
[]
[GlobalParams]
# let's output all material properties for demonstration purposes
outputs = exodus
# prefactor on the penalty function kernels. The higher this value is, the
# more rigorously the constraint is enforced
penalty = 1e3
[]
#
# These AuxVariables hold the directly calculated free energy density in the
# simulation cell. They are provided for visualization purposes.
#
[AuxVariables]
[./local_energy]
order = CONSTANT
family = MONOMIAL
[../]
[./cross_energy]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./local_free_energy]
type = TotalFreeEnergy
variable = local_energy
interfacial_vars = 'c'
kappa_names = 'kappa_c'
additional_free_energy = cross_energy
[../]
#
# Helper kernel to cpompute the gradient contribution from interfaces of order
# parameters evolved using the ACMultiInterface kernel
#
[./cross_terms]
type = CrossTermGradientFreeEnergy
variable = cross_energy
interfacial_vars = 'eta1 eta2 eta3'
#
# The interface coefficient matrix. This should be symmetrical!
#
kappa_names = 'kappa11 kappa12 kappa13
kappa21 kappa22 kappa23
kappa31 kappa32 kappa33'
[../]
[]
[Variables]
[./c]
order = FIRST
family = LAGRANGE
#
# We set up a smooth cradial concentrtaion gradient
# The concentration will quickly change to adapt to the preset order
# parameters eta1, eta2, and eta3
#
[./InitialCondition]
type = SmoothCircleIC
x1 = 0.0
y1 = 0.0
radius = 5.0
invalue = 1.0
outvalue = 0.01
int_width = 10.0
[../]
[../]
[./eta1]
order = FIRST
family = LAGRANGE
[./InitialCondition]
type = FunctionIC
#
# Note: this initial conditions sets up a _sharp_ interface. Ideally
# we should start with a smooth interface with a width consistent
# with the kappa parameter supplied for the given interface.
#
function = 'r:=sqrt(x^2+y^2);if(r<=4,1,0)'
[../]
[../]
[./eta2]
order = FIRST
family = LAGRANGE
[./InitialCondition]
type = FunctionIC
function = 'r:=sqrt(x^2+y^2);if(r>4&r<=7,1,0)'
[../]
[../]
[./eta3]
order = FIRST
family = LAGRANGE
[./InitialCondition]
type = FunctionIC
function = 'r:=sqrt(x^2+y^2);if(r>7,1,0)'
[../]
[../]
[]
[Kernels]
#
# Cahn-Hilliard kernel for the concentration variable.
# Note that we are not using an interfcae kernel on this variable, but rather
# rely on the interface width enforced on the order parameters. This allows us
# to use a direct solve using the CahnHilliard kernel _despite_ only using first
# order elements.
#
[./c_res]
type = CahnHilliard
variable = c
f_name = F
coupled_variables = 'eta1 eta2 eta3'
[../]
[./time]
type = TimeDerivative
variable = c
[../]
#
# Order parameter eta1
# Each order parameter is acted on by 4 kernels:
# 1. The stock time derivative deta_i/dt kernel
# 2. The Allen-Cahn kernel that takes a Dervative Material for the free energy
# 3. A gradient interface kernel that includes cross terms
# see http://mooseframework.org/wiki/PhysicsModules/PhaseField/DevelopingModels/MultiPhaseModels/ACMultiInterface/
# 4. A penalty contribution that forces the interface contributions h(eta)
# to sum up to unity
#
[./deta1dt]
type = TimeDerivative
variable = eta1
[../]
[./ACBulk1]
type = AllenCahn
variable = eta1
coupled_variables = 'eta2 eta3 c'
mob_name = L1
f_name = F
[../]
[./ACInterface1]
type = ACMultiInterface
variable = eta1
etas = 'eta1 eta2 eta3'
mob_name = L1
kappa_names = 'kappa11 kappa12 kappa13'
[../]
[./penalty1]
type = SwitchingFunctionPenalty
variable = eta1
etas = 'eta1 eta2 eta3'
h_names = 'h1 h2 h3'
[../]
#
# Order parameter eta2
#
[./deta2dt]
type = TimeDerivative
variable = eta2
[../]
[./ACBulk2]
type = AllenCahn
variable = eta2
coupled_variables = 'eta1 eta3 c'
mob_name = L2
f_name = F
[../]
[./ACInterface2]
type = ACMultiInterface
variable = eta2
etas = 'eta1 eta2 eta3'
mob_name = L2
kappa_names = 'kappa21 kappa22 kappa23'
[../]
[./penalty2]
type = SwitchingFunctionPenalty
variable = eta2
etas = 'eta1 eta2 eta3'
h_names = 'h1 h2 h3'
[../]
#
# Order parameter eta3
#
[./deta3dt]
type = TimeDerivative
variable = eta3
[../]
[./ACBulk3]
type = AllenCahn
variable = eta3
coupled_variables = 'eta1 eta2 c'
mob_name = L3
f_name = F
[../]
[./ACInterface3]
type = ACMultiInterface
variable = eta3
etas = 'eta1 eta2 eta3'
mob_name = L3
kappa_names = 'kappa31 kappa32 kappa33'
[../]
[./penalty3]
type = SwitchingFunctionPenalty
variable = eta3
etas = 'eta1 eta2 eta3'
h_names = 'h1 h2 h3'
[../]
[]
[BCs]
[./Periodic]
[./All]
auto_direction = 'x y'
[../]
[../]
[]
[Materials]
# here we declare some of the model parameters: the mobilities and interface
# gradient prefactors. For this example we use arbitrary numbers. In an actual simulation
# physical mobilities would be used, and the interface gradient prefactors would
# be readjusted to the free energy magnitudes.
[./consts]
type = GenericConstantMaterial
prop_names = 'M kappa_c L1 L2 L3 kappa11 kappa12 kappa13 kappa21 kappa22 kappa23 kappa31 kappa32 kappa33'
prop_values = '0.2 0.75 1 1 1 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 '
[../]
# This material sums up the individual phase contributions. It is written to the output file
# (see GlobalParams section above) and can be used to check the constraint enforcement.
[./etasummat]
type = ParsedMaterial
property_name = etasum
material_property_names = 'h1 h2 h3'
expression = 'h1+h2+h3'
[../]
# The phase contribution factors for each material point are computed using the
# SwitchingFunctionMaterials. Each phase with an order parameter eta contributes h(eta)
# to the global free energy density. h is a function that switches smoothly from 0 to 1
[./switching1]
type = SwitchingFunctionMaterial
function_name = h1
eta = eta1
h_order = SIMPLE
[../]
[./switching2]
type = SwitchingFunctionMaterial
function_name = h2
eta = eta2
h_order = SIMPLE
[../]
[./switching3]
type = SwitchingFunctionMaterial
function_name = h3
eta = eta3
h_order = SIMPLE
[../]
# The barrier function adds a phase transformation energy barrier. It also
# Drives order parameters toward the [0:1] interval to avoid negative or larger than 1
# order parameters (these are set to 0 and 1 contribution by the switching functions
# above)
[./barrier]
type = MultiBarrierFunctionMaterial
etas = 'eta1 eta2 eta3'
[../]
# We use DerivativeParsedMaterials to specify three (very) simple free energy
# expressions for the three phases. All necessary derivatives are built automatically.
# In a real problem these expressions can be arbitrarily complex (or even provided
# by custom kernels).
[./phase_free_energy_1]
type = DerivativeParsedMaterial
property_name = F1
expression = '(c-1)^2'
coupled_variables = 'c'
[../]
[./phase_free_energy_2]
type = DerivativeParsedMaterial
property_name = F2
expression = '(c-0.5)^2'
coupled_variables = 'c'
[../]
[./phase_free_energy_3]
type = DerivativeParsedMaterial
property_name = F3
expression = 'c^2'
coupled_variables = 'c'
[../]
# The DerivativeMultiPhaseMaterial ties the phase free energies together into a global free energy.
# http://mooseframework.org/wiki/PhysicsModules/PhaseField/DevelopingModels/MultiPhaseModels/
[./free_energy]
type = DerivativeMultiPhaseMaterial
property_name = F
# we use a constant free energy (GeneriConstantmaterial property Fx)
fi_names = 'F1 F2 F3'
hi_names = 'h1 h2 h3'
etas = 'eta1 eta2 eta3'
coupled_variables = 'c'
W = 1
[../]
[]
[Postprocessors]
# The total free energy of the simulation cell to observe the energy reduction.
[./total_free_energy]
type = ElementIntegralVariablePostprocessor
variable = local_energy
[../]
# for testing we also monitor the total solute amount, which should be conserved.
[./total_solute]
type = ElementIntegralVariablePostprocessor
variable = c
[../]
[]
[Preconditioning]
# This preconditioner makes sure the Jacobian Matrix is fully populated. Our
# kernels compute all Jacobian matrix entries.
# This allows us to use the Newton solver below.
[./SMP]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
# Automatic differentiation provedes a _full_ Jacobian in this example
# so we can safely use NEWTON for a fast solve
solve_type = 'NEWTON'
l_max_its = 15
l_tol = 1.0e-6
nl_max_its = 50
nl_rel_tol = 1.0e-6
nl_abs_tol = 1.0e-6
start_time = 0.0
end_time = 150.0
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.1
[../]
[]
[Debug]
# show_var_residual_norms = true
[]
[Outputs]
execute_on = 'timestep_end'
exodus = true
[./table]
type = CSV
delimiter = ' '
[../]
[]
(modules/combined/examples/phase_field-mechanics/kks_mechanics_KHS.i)
# KKS phase-field model coupled with elasticity using Khachaturyan's scheme as
# described in L.K. Aagesen et al., Computational Materials Science, 140, 10-21 (2017)
# Original run #170403a
[Mesh]
type = GeneratedMesh
dim = 3
nx = 640
ny = 1
nz = 1
xmin = -10
xmax = 10
ymin = 0
ymax = 0.03125
zmin = 0
zmax = 0.03125
elem_type = HEX8
[]
[Variables]
# order parameter
[./eta]
order = FIRST
family = LAGRANGE
[../]
# solute concentration
[./c]
order = FIRST
family = LAGRANGE
[../]
# chemical potential
[./w]
order = FIRST
family = LAGRANGE
[../]
# solute phase concentration (matrix)
[./cm]
order = FIRST
family = LAGRANGE
[../]
# solute phase concentration (precipitate)
[./cp]
order = FIRST
family = LAGRANGE
[../]
[./disp_x]
order = FIRST
family = LAGRANGE
[../]
[./disp_y]
order = FIRST
family = LAGRANGE
[../]
[./disp_z]
order = FIRST
family = LAGRANGE
[../]
[]
[ICs]
[./eta_ic]
variable = eta
type = FunctionIC
function = ic_func_eta
block = 0
[../]
[./c_ic]
variable = c
type = FunctionIC
function = ic_func_c
block = 0
[../]
[./w_ic]
variable = w
type = ConstantIC
value = 0.00991
block = 0
[../]
[./cm_ic]
variable = cm
type = ConstantIC
value = 0.131
block = 0
[../]
[./cp_ic]
variable = cp
type = ConstantIC
value = 0.236
block = 0
[../]
[]
[Functions]
[./ic_func_eta]
type = ParsedFunction
expression = '0.5*(1.0+tanh((x)/delta_eta/sqrt(2.0)))'
symbol_names = 'delta_eta'
symbol_values = '0.8034'
[../]
[./ic_func_c]
type = ParsedFunction
expression = '0.2389*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^3*(6*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^2-15*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))+10)+0.1339*(1-(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^3*(6*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^2-15*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))+10))'
symbol_names = 'delta'
symbol_values = '0.8034'
[../]
[./psi_eq_int]
type = ParsedFunction
expression = 'volume*psi_alpha'
symbol_names = 'volume psi_alpha'
symbol_values = 'volume psi_alpha'
[../]
[./gamma]
type = ParsedFunction
expression = '(psi_int - psi_eq_int) / dy / dz'
symbol_names = 'psi_int psi_eq_int dy dz'
symbol_values = 'psi_int psi_eq_int 0.03125 0.03125'
[../]
[]
[AuxVariables]
[./sigma11]
order = CONSTANT
family = MONOMIAL
[../]
[./sigma22]
order = CONSTANT
family = MONOMIAL
[../]
[./sigma33]
order = CONSTANT
family = MONOMIAL
[../]
[./e11]
order = CONSTANT
family = MONOMIAL
[../]
[./e12]
order = CONSTANT
family = MONOMIAL
[../]
[./e22]
order = CONSTANT
family = MONOMIAL
[../]
[./e33]
order = CONSTANT
family = MONOMIAL
[../]
[./e_el11]
order = CONSTANT
family = MONOMIAL
[../]
[./e_el12]
order = CONSTANT
family = MONOMIAL
[../]
[./e_el22]
order = CONSTANT
family = MONOMIAL
[../]
[./f_el]
order = CONSTANT
family = MONOMIAL
[../]
[./eigen_strain00]
order = CONSTANT
family = MONOMIAL
[../]
[./Fglobal]
order = CONSTANT
family = MONOMIAL
[../]
[./psi]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./matl_sigma11]
type = RankTwoAux
rank_two_tensor = stress
index_i = 0
index_j = 0
variable = sigma11
[../]
[./matl_sigma22]
type = RankTwoAux
rank_two_tensor = stress
index_i = 1
index_j = 1
variable = sigma22
[../]
[./matl_sigma33]
type = RankTwoAux
rank_two_tensor = stress
index_i = 2
index_j = 2
variable = sigma33
[../]
[./matl_e11]
type = RankTwoAux
rank_two_tensor = total_strain
index_i = 0
index_j = 0
variable = e11
[../]
[./f_el]
type = MaterialRealAux
variable = f_el
property = f_el_mat
execute_on = timestep_end
[../]
[./GlobalFreeEnergy]
variable = Fglobal
type = KKSGlobalFreeEnergy
fa_name = fm
fb_name = fp
w = 0.0264
kappa_names = kappa
interfacial_vars = eta
[../]
[./psi_potential]
variable = psi
type = ParsedAux
coupled_variables = 'Fglobal w c f_el sigma11 e11'
expression = 'Fglobal - w*c + f_el - sigma11*e11'
[../]
[]
[BCs]
[./left_x]
type = DirichletBC
variable = disp_x
boundary = left
value = 0
[../]
[./right_x]
type = DirichletBC
variable = disp_x
boundary = right
value = 0
[../]
[./front_y]
type = DirichletBC
variable = disp_y
boundary = front
value = 0
[../]
[./back_y]
type = DirichletBC
variable = disp_y
boundary = back
value = 0
[../]
[./top_z]
type = DirichletBC
variable = disp_z
boundary = top
value = 0
[../]
[./bottom_z]
type = DirichletBC
variable = disp_z
boundary = bottom
value = 0
[../]
[]
[Materials]
# Chemical free energy of the matrix
[./fm]
type = DerivativeParsedMaterial
property_name = fm
coupled_variables = 'cm'
expression = '6.55*(cm-0.13)^2'
[../]
# Chemical Free energy of the precipitate phase
[./fp]
type = DerivativeParsedMaterial
property_name = fp
coupled_variables = 'cp'
expression = '6.55*(cp-0.235)^2'
[../]
# Elastic energy of the precipitate
[./elastic_free_energy_p]
type = ElasticEnergyMaterial
f_name = f_el_mat
args = 'eta'
outputs = exodus
[../]
# h(eta)
[./h_eta]
type = SwitchingFunctionMaterial
h_order = HIGH
eta = eta
[../]
# 1- h(eta), putting in function explicitly
[./one_minus_h_eta_explicit]
type = DerivativeParsedMaterial
property_name = one_minus_h_explicit
coupled_variables = eta
expression = 1-eta^3*(6*eta^2-15*eta+10)
outputs = exodus
[../]
# g(eta)
[./g_eta]
type = BarrierFunctionMaterial
g_order = SIMPLE
eta = eta
[../]
# constant properties
[./constants]
type = GenericConstantMaterial
prop_names = 'M L kappa misfit'
prop_values = '0.7 0.7 0.01704 0.00377'
[../]
#Mechanical properties
[./Stiffness_matrix]
type = ComputeElasticityTensor
base_name = C_matrix
C_ijkl = '103.3 74.25 74.25 103.3 74.25 103.3 46.75 46.75 46.75'
fill_method = symmetric9
[../]
[./Stiffness_ppt]
type = ComputeElasticityTensor
C_ijkl = '100.7 71.45 71.45 100.7 71.45 100.7 50.10 50.10 50.10'
base_name = C_ppt
fill_method = symmetric9
[../]
[./C]
type = CompositeElasticityTensor
args = eta
tensors = 'C_matrix C_ppt'
weights = 'one_minus_h_explicit h'
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[./strain]
type = ComputeSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = 'eigenstrain_ppt'
[../]
[./eigen_strain]
type = ComputeVariableEigenstrain
eigen_base = '0.00377 0.00377 0.00377 0 0 0'
prefactor = h
args = eta
eigenstrain_name = 'eigenstrain_ppt'
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
# enforce c = (1-h(eta))*cm + h(eta)*cp
[./PhaseConc]
type = KKSPhaseConcentration
ca = cm
variable = cp
c = c
eta = eta
[../]
# enforce pointwise equality of chemical potentials
[./ChemPotVacancies]
type = KKSPhaseChemicalPotential
variable = cm
cb = cp
fa_name = fm
fb_name = fp
[../]
#
# Cahn-Hilliard Equation
#
[./CHBulk]
type = KKSSplitCHCRes
variable = c
ca = cm
fa_name = fm
w = w
[../]
[./dcdt]
type = CoupledTimeDerivative
variable = w
v = c
[../]
[./ckernel]
type = SplitCHWRes
mob_name = M
variable = w
[../]
#
# Allen-Cahn Equation
#
[./ACBulkF]
type = KKSACBulkF
variable = eta
fa_name = fm
fb_name = fp
w = 0.0264
args = 'cp cm'
[../]
[./ACBulkC]
type = KKSACBulkC
variable = eta
ca = cm
cb = cp
fa_name = fm
[../]
[./ACBulk_el] #This adds df_el/deta for strain interpolation
type = AllenCahn
variable = eta
f_name = f_el_mat
[../]
[./ACInterface]
type = ACInterface
variable = eta
kappa_name = kappa
[../]
[./detadt]
type = TimeDerivative
variable = eta
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -sub_pc_type -sub_pc_factor_shift_type'
petsc_options_value = 'asm ilu nonzero'
l_max_its = 30
nl_max_its = 10
l_tol = 1.0e-4
nl_rel_tol = 1.0e-8
nl_abs_tol = 1.0e-11
num_steps = 200
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.5
[../]
[]
[Postprocessors]
[./f_el_int]
type = ElementIntegralMaterialProperty
mat_prop = f_el_mat
[../]
[./c_alpha]
type = SideAverageValue
boundary = left
variable = c
[../]
[./c_beta]
type = SideAverageValue
boundary = right
variable = c
[../]
[./e11_alpha]
type = SideAverageValue
boundary = left
variable = e11
[../]
[./e11_beta]
type = SideAverageValue
boundary = right
variable = e11
[../]
[./s11_alpha]
type = SideAverageValue
boundary = left
variable = sigma11
[../]
[./s22_alpha]
type = SideAverageValue
boundary = left
variable = sigma22
[../]
[./s33_alpha]
type = SideAverageValue
boundary = left
variable = sigma33
[../]
[./s11_beta]
type = SideAverageValue
boundary = right
variable = sigma11
[../]
[./s22_beta]
type = SideAverageValue
boundary = right
variable = sigma22
[../]
[./s33_beta]
type = SideAverageValue
boundary = right
variable = sigma33
[../]
[./f_el_alpha]
type = SideAverageValue
boundary = left
variable = f_el
[../]
[./f_el_beta]
type = SideAverageValue
boundary = right
variable = f_el
[../]
[./f_c_alpha]
type = SideAverageValue
boundary = left
variable = Fglobal
[../]
[./f_c_beta]
type = SideAverageValue
boundary = right
variable = Fglobal
[../]
[./chem_pot_alpha]
type = SideAverageValue
boundary = left
variable = w
[../]
[./chem_pot_beta]
type = SideAverageValue
boundary = right
variable = w
[../]
[./psi_alpha]
type = SideAverageValue
boundary = left
variable = psi
[../]
[./psi_beta]
type = SideAverageValue
boundary = right
variable = psi
[../]
[./total_energy]
type = ElementIntegralVariablePostprocessor
variable = Fglobal
[../]
# Get simulation cell size from postprocessor
[./volume]
type = ElementIntegralMaterialProperty
mat_prop = 1
[../]
[./psi_eq_int]
type = FunctionValuePostprocessor
function = psi_eq_int
[../]
[./psi_int]
type = ElementIntegralVariablePostprocessor
variable = psi
[../]
[./gamma]
type = FunctionValuePostprocessor
function = gamma
[../]
[./int_position]
type = FindValueOnLine
start_point = '-10 0 0'
end_point = '10 0 0'
v = eta
target = 0.5
[../]
[]
#
# Precondition using handcoded off-diagonal terms
#
[Preconditioning]
[./full]
type = SMP
full = true
[../]
[]
[Outputs]
[./exodus]
type = Exodus
time_step_interval = 20
[../]
checkpoint = true
[./csv]
type = CSV
execute_on = 'final'
[../]
[]
(test/tests/time_steppers/time_stepper_system/testRejectStep.i)
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 10
[]
[Variables]
[u]
[]
[]
[Kernels]
[diff]
type = CoefDiffusion
variable = u
coef = 0.1
[]
[time]
type = TimeDerivative
variable = u
[]
[]
[BCs]
[left]
type = DirichletBC
variable = u
boundary = left
value = 0
[]
[right]
type = DirichletBC
variable = u
boundary = right
value = 1
[]
[]
[Executioner]
type = Transient
num_steps = 10
solve_type = PJFNK
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
dtmin = 5
[TimeSteppers]
[TestStepper]
type = TestSourceStepper
dt = 10
[]
[SolutionTimeAdaptiveDT]
type = SolutionTimeAdaptiveDT
dt = 5
[]
[]
[]
[Postprocessors]
[dt]
type = TimestepSize
[]
[]
[Outputs]
csv = true
[]
(test/tests/executioners/executioner/sln-time-adapt.i)
[Mesh]
type = GeneratedMesh
dim = 2
xmin = -1
xmax = 1
ymin = -1
ymax = 1
nx = 10
ny = 10
elem_type = QUAD4
[]
[Variables]
active = 'u'
[./u]
order = FIRST
family = LAGRANGE
[./InitialCondition]
type = ConstantIC
value = 0
[../]
[../]
[]
[Functions]
[./forcing_fn]
type = ParsedFunction
# dudt = 3*t^2*(x^2 + y^2)
expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
[../]
[./exact_fn]
type = ParsedFunction
expression = t*t*t*((x*x)+(y*y))
[../]
[]
[Kernels]
active = 'diff ie ffn'
[./ie]
type = TimeDerivative
variable = u
[../]
[./diff]
type = Diffusion
variable = u
[../]
[./ffn]
type = BodyForce
variable = u
function = forcing_fn
[../]
[]
[BCs]
active = 'all'
[./all]
type = FunctionDirichletBC
variable = u
boundary = '0 1 2 3'
function = exact_fn
[../]
[./left]
type = DirichletBC
variable = u
boundary = 3
value = 0
[../]
[./right]
type = DirichletBC
variable = u
boundary = 1
value = 1
[../]
[]
[Postprocessors]
[./l2_err]
type = ElementL2Error
variable = u
function = exact_fn
[../]
[./dt]
type = TimestepSize
[../]
[]
[Executioner]
type = Transient
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.1
[../]
scheme = 'implicit-euler'
solve_type = 'PJFNK'
start_time = 0.0
num_steps = 5
[]
[Outputs]
execute_on = 'timestep_end'
file_base = out_sta
exodus = true
[]
(modules/porous_flow/examples/groundwater/ex01.i)
# Groundwater extraction example.
# System consists of two confined aquifers separated by an aquitard
# There is a hydraulic gradient in the upper aquifer
# A well extracts water from the lower aquifer, and the impact on the upper aquifer is observed
# In the center of the model, the roof of the upper aquifer sits 70m below the local water table
[Mesh]
[basic_mesh]
type = GeneratedMeshGenerator
dim = 3
xmin = -50
xmax = 50
nx = 20
ymin = -25
ymax = 25
ny = 10
zmin = -100
zmax = -70
nz = 3
[]
[lower_aquifer]
type = SubdomainBoundingBoxGenerator
input = basic_mesh
block_id = 1
block_name = lower_aquifer
bottom_left = '-1000 -500 -100'
top_right = '1000 500 -90'
[]
[aquitard]
type = SubdomainBoundingBoxGenerator
input = lower_aquifer
block_id = 2
block_name = aquitard
bottom_left = '-1000 -500 -90'
top_right = '1000 500 -80'
[]
[upper_aquifer]
type = SubdomainBoundingBoxGenerator
input = aquitard
block_id = 3
block_name = upper_aquifer
bottom_left = '-1000 -500 -80'
top_right = '1000 500 -70'
[]
[]
[GlobalParams]
PorousFlowDictator = dictator
[]
[Variables]
[pp]
[]
[]
[ICs]
[pp]
type = FunctionIC
variable = pp
function = insitu_pp
[]
[]
[BCs]
[pp]
type = FunctionDirichletBC
variable = pp
function = insitu_pp
boundary = 'left right top bottom front back'
[]
[]
[Functions]
[upper_aquifer_head]
type = ParsedFunction
expression = '10 + x / 200'
[]
[lower_aquifer_head]
type = ParsedFunction
expression = '20'
[]
[insitu_head]
type = ParsedFunction
symbol_values = 'lower_aquifer_head upper_aquifer_head'
symbol_names = 'low up'
expression = 'if(z <= -90, low, if(z >= -80, up, (up * (z + 90) - low * (z + 80)) / (10.0)))'
[]
[insitu_pp]
type = ParsedFunction
symbol_values = 'insitu_head'
symbol_names = 'h'
expression = '(h - z) * 1E4'
[]
[l_rate]
type = ParsedFunction
symbol_values = 'm3_produced dt'
symbol_names = 'm3_produced dt'
expression = '1000 * m3_produced / dt'
[]
[]
[AuxVariables]
[insitu_head]
[]
[head_change]
[]
[]
[AuxKernels]
[insitu_head]
type = FunctionAux
variable = insitu_head
function = insitu_head
[]
[head_change]
type = ParsedAux
coupled_variables = 'pp insitu_head'
use_xyzt = true
expression = 'pp / 1E4 + z - insitu_head'
variable = head_change
[]
[]
[Postprocessors]
[m3_produced]
type = PorousFlowPlotQuantity
uo = volume_extracted
outputs = 'none'
[]
[dt]
type = TimestepSize
outputs = 'none'
[]
[l_per_s]
type = FunctionValuePostprocessor
function = l_rate
[]
[]
[VectorPostprocessors]
[drawdown]
type = LineValueSampler
variable = head_change
start_point = '-50 0 -75'
end_point = '50 0 -75'
num_points = 101
sort_by = x
[]
[]
[PorousFlowBasicTHM]
fp = simple_fluid
gravity = '0 0 -10'
porepressure = pp
multiply_by_density = false
[]
[FluidProperties]
[simple_fluid]
type = SimpleFluidProperties
# the following mean that density = 1000 * exp(P / 1E15) ~ 1000
thermal_expansion = 0
bulk_modulus = 1E15
[]
[]
[Materials]
[porosity_aquifers]
type = PorousFlowPorosityConst
porosity = 0.05
block = 'upper_aquifer lower_aquifer'
[]
[porosity_aquitard]
type = PorousFlowPorosityConst
porosity = 0.2
block = aquitard
[]
[biot_mod]
type = PorousFlowConstantBiotModulus
fluid_bulk_modulus = 2E9
biot_coefficient = 1.0
[]
[permeability_aquifers]
type = PorousFlowPermeabilityConst
permeability = '1E-12 0 0 0 1E-12 0 0 0 1E-12'
block = 'upper_aquifer lower_aquifer'
[]
[permeability_aquitard]
type = PorousFlowPermeabilityConst
permeability = '1E-16 0 0 0 1E-16 0 0 0 1E-17'
block = aquitard
[]
[]
[DiracKernels]
[sink]
type = PorousFlowPolyLineSink
SumQuantityUO = volume_extracted
point_file = ex01.bh_lower
line_length = 10
variable = pp
# following produces a flux of 0 m^3(water)/m(borehole length)/s if porepressure = 0, and a flux of 1 m^3/m/s if porepressure = 1E9
p_or_t_vals = '0 1E9'
fluxes = '0 1'
[]
[]
[UserObjects]
[volume_extracted]
type = PorousFlowSumQuantity
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = Newton
[TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 1.1E5
[]
end_time = 3.456E5 # 4 days
nl_abs_tol = 1E-13
[]
[Outputs]
[csv]
type = CSV
file_base = ex01_lower_extraction
execute_on = final
[]
[]
(modules/combined/examples/mortar/eigenstrain.i)
#
# Eigenstrain with Mortar gradient periodicity
#
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 50
ny = 50
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
[]
[./cnode]
input = gen
type = ExtraNodesetGenerator
coord = '0.0 0.0'
new_boundary = 100
[../]
[./anode]
input = cnode
type = ExtraNodesetGenerator
coord = '0.0 0.5'
new_boundary = 101
[../]
[secondary_x]
input = anode
type = LowerDBlockFromSidesetGenerator
sidesets = '3'
new_block_id = 10
new_block_name = "secondary_x"
[]
[primary_x]
input = secondary_x
type = LowerDBlockFromSidesetGenerator
sidesets = '1'
new_block_id = 12
new_block_name = "primary_x"
[]
[secondary_y]
input = primary_x
type = LowerDBlockFromSidesetGenerator
sidesets = '0'
new_block_id = 11
new_block_name = "secondary_y"
[]
[primary_y]
input = secondary_y
type = LowerDBlockFromSidesetGenerator
sidesets = '2'
new_block_id = 13
new_block_name = "primary_y"
[]
[]
[GlobalParams]
derivative_order = 2
enable_jit = true
displacements = 'disp_x disp_y'
[]
# AuxVars to compute the free energy density for outputting
[AuxVariables]
[./local_energy]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./local_free_energy]
type = TotalFreeEnergy
block = 0
execute_on = 'initial LINEAR'
variable = local_energy
interfacial_vars = 'c'
kappa_names = 'kappa_c'
[../]
[]
[Variables]
# Solute concentration variable
[./c]
[./InitialCondition]
type = RandomIC
min = 0.49
max = 0.51
[../]
block = 0
[../]
[./w]
block = 0
[../]
# Mesh displacement
[./disp_x]
block = 0
[../]
[./disp_y]
block = 0
[../]
# Lagrange multipliers for gradient component periodicity
[./lm_left_right_xx]
order = FIRST
family = LAGRANGE
block = secondary_x
[../]
[./lm_left_right_xy]
order = FIRST
family = LAGRANGE
block = secondary_x
[../]
[./lm_left_right_yx]
order = FIRST
family = LAGRANGE
block = secondary_x
[../]
[./lm_left_right_yy]
order = FIRST
family = LAGRANGE
block = secondary_x
[../]
[./lm_up_down_xx]
order = FIRST
family = LAGRANGE
block = secondary_y
[../]
[./lm_up_down_xy]
order = FIRST
family = LAGRANGE
block = secondary_y
[../]
[./lm_up_down_yx]
order = FIRST
family = LAGRANGE
block = secondary_y
[../]
[./lm_up_down_yy]
order = FIRST
family = LAGRANGE
block = secondary_y
[../]
[]
[Constraints]
[./ud_disp_x_grad_x]
type = EqualGradientConstraint
variable = lm_up_down_xx
component = 0
secondary_variable = disp_x
secondary_boundary = bottom
primary_boundary = top
secondary_subdomain = secondary_y
primary_subdomain = primary_y
periodic = true
[../]
[./ud_disp_x_grad_y]
type = EqualGradientConstraint
variable = lm_up_down_xy
component = 1
secondary_variable = disp_x
secondary_boundary = bottom
primary_boundary = top
secondary_subdomain = secondary_y
primary_subdomain = primary_y
periodic = true
[../]
[./ud_disp_y_grad_x]
type = EqualGradientConstraint
variable = lm_up_down_yx
component = 0
secondary_variable = disp_y
secondary_boundary = bottom
primary_boundary = top
secondary_subdomain = secondary_y
primary_subdomain = primary_y
periodic = true
[../]
[./ud_disp_y_grad_y]
type = EqualGradientConstraint
variable = lm_up_down_yy
component = 1
secondary_variable = disp_y
secondary_boundary = bottom
primary_boundary = top
secondary_subdomain = secondary_y
primary_subdomain = primary_y
periodic = true
[../]
[./lr_disp_x_grad_x]
type = EqualGradientConstraint
variable = lm_left_right_xx
component = 0
secondary_variable = disp_x
secondary_boundary = left
primary_boundary = right
secondary_subdomain = secondary_x
primary_subdomain = primary_x
periodic = true
[../]
[./lr_disp_x_grad_y]
type = EqualGradientConstraint
variable = lm_left_right_xy
component = 1
secondary_variable = disp_x
secondary_boundary = left
primary_boundary = right
secondary_subdomain = secondary_x
primary_subdomain = primary_x
periodic = true
[../]
[./lr_disp_y_grad_x]
type = EqualGradientConstraint
variable = lm_left_right_yx
component = 0
secondary_variable = disp_y
secondary_boundary = left
primary_boundary = right
secondary_subdomain = secondary_x
primary_subdomain = primary_x
periodic = true
[../]
[./lr_disp_y_grad_y]
type = EqualGradientConstraint
variable = lm_left_right_yy
component = 1
secondary_variable = disp_y
secondary_boundary = left
primary_boundary = right
secondary_subdomain = secondary_x
primary_subdomain = primary_x
periodic = true
[../]
[]
[Kernels]
# Set up stress divergence kernels
[./TensorMechanics]
block = 0
[../]
# Cahn-Hilliard kernels
[./c_dot]
type = CoupledTimeDerivative
variable = w
v = c
block = 0
[../]
[./c_res]
type = SplitCHParsed
variable = c
f_name = F
kappa_name = kappa_c
w = w
block = 0
[../]
[./w_res]
type = SplitCHWRes
variable = w
mob_name = M
block = 0
[../]
[]
[Materials]
# declare a few constants, such as mobilities (L,M) and interface gradient prefactors (kappa*)
[./consts]
type = GenericConstantMaterial
block = '0 10 11'
prop_names = 'M kappa_c'
prop_values = '0.2 0.01 '
[../]
[./shear1]
type = GenericConstantRankTwoTensor
block = 0
tensor_values = '0 0 0 0 0 0.5'
tensor_name = shear1
[../]
[./shear2]
type = GenericConstantRankTwoTensor
block = 0
tensor_values = '0 0 0 0 0 -0.5'
tensor_name = shear2
[../]
[./expand3]
type = GenericConstantRankTwoTensor
block = 0
tensor_values = '1 1 0 0 0 0'
tensor_name = expand3
[../]
[./weight1]
type = DerivativeParsedMaterial
block = 0
expression = '0.3*c^2'
property_name = weight1
coupled_variables = c
[../]
[./weight2]
type = DerivativeParsedMaterial
block = 0
expression = '0.3*(1-c)^2'
property_name = weight2
coupled_variables = c
[../]
[./weight3]
type = DerivativeParsedMaterial
block = 0
expression = '4*(0.5-c)^2'
property_name = weight3
coupled_variables = c
[../]
# matrix phase
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
C_ijkl = '1 1'
fill_method = symmetric_isotropic
[../]
[./strain]
type = ComputeSmallStrain
block = 0
displacements = 'disp_x disp_y'
eigenstrain_names = eigenstrain
[../]
[./eigenstrain]
type = CompositeEigenstrain
block = 0
tensors = 'shear1 shear2 expand3'
weights = 'weight1 weight2 weight3'
args = c
eigenstrain_name = eigenstrain
[../]
[./stress]
type = ComputeLinearElasticStress
block = 0
[../]
# chemical free energies
[./chemical_free_energy]
type = DerivativeParsedMaterial
block = 0
property_name = Fc
expression = '4*c^2*(1-c)^2'
coupled_variables = 'c'
outputs = exodus
output_properties = Fc
[../]
# elastic free energies
[./elastic_free_energy]
type = ElasticEnergyMaterial
f_name = Fe
block = 0
args = 'c'
outputs = exodus
output_properties = Fe
[../]
# free energy (chemical + elastic)
[./free_energy]
type = DerivativeSumMaterial
block = 0
property_name = F
sum_materials = 'Fc Fe'
coupled_variables = 'c'
[../]
[]
[BCs]
[./Periodic]
[./up_down]
primary = top
secondary = bottom
translation = '0 -1 0'
variable = 'c w'
[../]
[./left_right]
primary = left
secondary = right
translation = '1 0 0'
variable = 'c w'
[../]
[../]
# fix center point location
[./centerfix_x]
type = DirichletBC
boundary = 100
variable = disp_x
value = 0
[../]
[./centerfix_y]
type = DirichletBC
boundary = 100
variable = disp_y
value = 0
[../]
# fix side point x coordinate to inhibit rotation
[./angularfix]
type = DirichletBC
boundary = 101
variable = disp_x
value = 0
[../]
[]
[Preconditioning]
[./SMP]
type = SMP
full = true
[../]
[]
# We monitor the total free energy and the total solute concentration (should be constant)
[Postprocessors]
[./total_free_energy]
type = ElementIntegralVariablePostprocessor
block = 0
execute_on = 'initial TIMESTEP_END'
variable = local_energy
[../]
[./total_solute]
type = ElementIntegralVariablePostprocessor
block = 0
execute_on = 'initial TIMESTEP_END'
variable = c
[../]
[./min]
type = ElementExtremeValue
block = 0
execute_on = 'initial TIMESTEP_END'
value_type = min
variable = c
[../]
[./max]
type = ElementExtremeValue
block = 0
execute_on = 'initial TIMESTEP_END'
value_type = max
variable = c
[../]
[]
[Executioner]
type = Transient
scheme = bdf2
solve_type = 'PJFNK'
line_search = basic
# mortar currently does not support MPI parallelization
petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_shift_amount'
petsc_options_value = ' lu NONZERO 1e-10'
l_max_its = 30
nl_max_its = 12
l_tol = 1.0e-4
nl_rel_tol = 1.0e-8
nl_abs_tol = 1.0e-10
start_time = 0.0
num_steps = 200
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.01
[../]
[]
[Outputs]
execute_on = 'timestep_end'
print_linear_residuals = false
exodus = true
[./table]
type = CSV
delimiter = ' '
[../]
[]
(modules/phase_field/test/tests/GrandPotentialPFM/GrandPotentialMultiphase_AD.i)
[Mesh]
type = GeneratedMesh
dim = 2
nx = 20
ny = 20
xmin = -20
xmax = 20
ymin = -20
ymax = 20
[]
[GlobalParams]
op_num = 2
var_name_base = etab
[]
[Variables]
[w]
[]
[etaa0]
[]
[etab0]
[]
[etab1]
[]
[]
[AuxVariables]
[bnds]
order = FIRST
family = LAGRANGE
[]
[]
[ICs]
[IC_etaa0]
type = FunctionIC
variable = etaa0
function = ic_func_etaa0
[]
[IC_etab0]
type = FunctionIC
variable = etab0
function = ic_func_etab0
[]
[IC_etab1]
type = FunctionIC
variable = etab1
function = ic_func_etab1
[]
[IC_w]
type = ConstantIC
value = -0.05
variable = w
[]
[]
[Functions]
[ic_func_etaa0]
type = ADParsedFunction
value = 'r:=sqrt(x^2+y^2);0.5*(1.0-tanh((r-10.0)/sqrt(2.0)))'
[]
[ic_func_etab0]
type = ADParsedFunction
value = 'r:=sqrt(x^2+y^2);0.5*(1.0+tanh((r-10)/sqrt(2.0)))*0.5*(1.0+tanh((y)/sqrt(2.0)))'
[]
[ic_func_etab1]
type = ADParsedFunction
value = 'r:=sqrt(x^2+y^2);0.5*(1.0+tanh((r-10)/sqrt(2.0)))*0.5*(1.0-tanh((y)/sqrt(2.0)))'
[]
[]
[BCs]
[]
[Kernels]
# Order parameter eta_alpha0
[ACa0_bulk]
type = ADACGrGrMulti
variable = etaa0
v = 'etab0 etab1'
gamma_names = 'gab gab'
[]
[ACa0_sw]
type = ADACSwitching
variable = etaa0
Fj_names = 'omegaa omegab'
hj_names = 'ha hb'
[]
[ACa0_int]
type = ADACInterface
variable = etaa0
kappa_name = kappa
variable_L = false
[]
[ea0_dot]
type = ADTimeDerivative
variable = etaa0
[]
# Order parameter eta_beta0
[ACb0_bulk]
type = ADACGrGrMulti
variable = etab0
v = 'etaa0 etab1'
gamma_names = 'gab gbb'
[]
[ACb0_sw]
type = ADACSwitching
variable = etab0
Fj_names = 'omegaa omegab'
hj_names = 'ha hb'
[]
[ACb0_int]
type = ADACInterface
variable = etab0
kappa_name = kappa
variable_L = false
[]
[eb0_dot]
type = ADTimeDerivative
variable = etab0
[]
# Order parameter eta_beta1
[ACb1_bulk]
type = ADACGrGrMulti
variable = etab1
v = 'etaa0 etab0'
gamma_names = 'gab gbb'
[]
[ACb1_sw]
type = ADACSwitching
variable = etab1
Fj_names = 'omegaa omegab'
hj_names = 'ha hb'
[]
[ACb1_int]
type = ADACInterface
variable = etab1
kappa_name = kappa
variable_L = false
[]
[eb1_dot]
type = ADTimeDerivative
variable = etab1
[]
#Chemical potential
[w_dot]
type = ADSusceptibilityTimeDerivative
variable = w
f_name = chi
[]
[Diffusion]
type = ADMatDiffusion
variable = w
diffusivity = Dchi
[]
[coupled_etaa0dot]
type = ADCoupledSwitchingTimeDerivative
variable = w
v = etaa0
Fj_names = 'rhoa rhob'
hj_names = 'ha hb'
args = 'etaa0 etab0 etab1'
[]
[coupled_etab0dot]
type = ADCoupledSwitchingTimeDerivative
variable = w
v = etab0
Fj_names = 'rhoa rhob'
hj_names = 'ha hb'
args = 'etaa0 etab0 etab1'
[]
[coupled_etab1dot]
type = ADCoupledSwitchingTimeDerivative
variable = w
v = etab1
Fj_names = 'rhoa rhob'
hj_names = 'ha hb'
args = 'etaa0 etab0 etab1'
[]
[]
[AuxKernels]
[BndsCalc]
type = BndsCalcAux
variable = bnds
execute_on = timestep_end
[]
[]
# enable_jit set to false in many materials to make this test start up faster.
# It is recommended to set enable_jit = true or just remove these lines for
# production runs with this model
[Materials]
[ha]
type = ADSwitchingFunctionMultiPhaseMaterial
h_name = ha
all_etas = 'etaa0 etab0 etab1'
phase_etas = 'etaa0'
[]
[hb]
type = ADSwitchingFunctionMultiPhaseMaterial
h_name = hb
all_etas = 'etaa0 etab0 etab1'
phase_etas = 'etab0 etab1'
[]
[omegaa]
type = ADDerivativeParsedMaterial
args = 'w'
f_name = omegaa
material_property_names = 'Vm ka caeq'
expression = '-0.5*w^2/Vm^2/ka-w/Vm*caeq'
derivative_order = 2
[]
[omegab]
type = ADDerivativeParsedMaterial
args = 'w'
f_name = omegab
material_property_names = 'Vm kb cbeq'
expression = '-0.5*w^2/Vm^2/kb-w/Vm*cbeq'
derivative_order = 2
[]
[rhoa]
type = ADDerivativeParsedMaterial
args = 'w'
f_name = rhoa
material_property_names = 'Vm ka caeq'
expression = 'w/Vm^2/ka + caeq/Vm'
derivative_order = 2
[]
[rhob]
type = ADDerivativeParsedMaterial
args = 'w'
f_name = rhob
material_property_names = 'Vm kb cbeq'
expression = 'w/Vm^2/kb + cbeq/Vm'
derivative_order = 2
[]
[const]
type = ADGenericConstantMaterial
prop_names = 'kappa_c kappa L D chi Vm ka caeq kb cbeq gab gbb mu'
prop_values = '0 1 1.0 1.0 1.0 1.0 10.0 0.1 10.0 0.9 4.5 1.5 1.0'
[]
[Mobility]
type = ADDerivativeParsedMaterial
f_name = Dchi
material_property_names = 'D chi'
expression = 'D*chi'
derivative_order = 2
[]
[]
[Preconditioning]
[SMP]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = bdf2
solve_type = NEWTON
petsc_options_iname = '-pc_type '
petsc_options_value = 'lu '
l_tol = 1.0e-3
nl_rel_tol = 1.0e-8
nl_abs_tol = 1e-8
num_steps = 2
[TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.1
[]
[]
[Outputs]
exodus = true
file_base = GrandPotentialMultiphase_out
[]
(test/tests/time_steppers/time_adaptive/time-adaptive.i)
[Mesh]
type = GeneratedMesh
dim = 1
[]
[Variables]
[u]
order = CONSTANT
family = MONOMIAL
[]
[]
[Problem]
type = SlowProblem
seconds_to_sleep = '0.0 0.0 0.1 0.1 0.5 0.2 0.2 0.1 0.1 0.1'
kernel_coverage_check = false
[]
[Executioner]
type = Transient
solve_type = NEWTON
num_steps = 10
[TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.5
[]
[]
[Postprocessors]
[dt]
type = TimestepSize
[]
[]
[Outputs]
csv = true
[]
(modules/combined/examples/geochem-porous_flow/forge/porous_flow.i)
# Input file modified from RobPodgorney version
# - 2D instead of 3D with different resolution. Effectively this means a 1m height of RobPodgorney aquifer is simulated. RobPodgorney total mass flux is 2.5kg/s meaning 0.25kg/s is appropriate here
# - Celsius instead of Kelvin
# - no use of PorousFlowPointEnthalpySourceFromPostprocessor since that is not yet merged into MOOSE: a DirichletBC is used instead
# - Use of PorousFlowFullySaturated instead of PorousFlowUnsaturated, and the save_component_rate_in feature to record the change in kg of each species at each node for passing to the Geochem simulation
# - MultiApps and Transfers to transfer information between this simulation and the aquifer_geochemistry.i simulation
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 225
ny = 200
xmin = -400
xmax = 500
ymin = -400
ymax = 400
[]
[injection_node]
input = gen
type = ExtraNodesetGenerator
new_boundary = injection_node
coord = '0 0 0'
[]
[]
[GlobalParams]
PorousFlowDictator = dictator
gravity = '0 0 0'
[]
[Variables]
[f_H]
initial_condition = 8.201229858451E-07
[]
[f_Na]
initial_condition = 2.281094143525E-03
[]
[f_K]
initial_condition = 2.305489507836E-04
[]
[f_Ca]
initial_condition = 5.818776782059E-04
[]
[f_Mg]
initial_condition = 1.539513498238E-07
[]
[f_SiO2]
initial_condition = 2.691822196469E-04
[]
[f_Al]
initial_condition = 4.457519474122E-08
[]
[f_Cl]
initial_condition = 4.744309776594E-03
[]
[f_SO4]
initial_condition = 9.516650880811E-06
[]
[f_HCO3]
initial_condition = 5.906126982324E-05
[]
[porepressure]
initial_condition = 20E6
[]
[temperature]
initial_condition = 220 # degC
scaling = 1E-6 # fluid enthalpy is roughly 1E6
[]
[]
[BCs]
[source_temperature]
type = DirichletBC
boundary = injection_node
variable = temperature
value = 70 # degC
[]
[]
[DiracKernels]
[inject_H]
type = PorousFlowPointSourceFromPostprocessor
point = ' 0 0 0'
mass_flux = 4.790385871045E-08
variable = f_H
[]
[inject_Na]
type = PorousFlowPointSourceFromPostprocessor
point = ' 0 0 0'
mass_flux = 7.586252963780E-07
variable = f_Na
[]
[inject_K]
type = PorousFlowPointSourceFromPostprocessor
point = ' 0 0 0'
mass_flux = 2.746517625125E-07
variable = f_K
[]
[inject_Ca]
type = PorousFlowPointSourceFromPostprocessor
point = ' 0 0 0'
mass_flux = 7.775129478597E-07
variable = f_Ca
[]
[inject_Mg]
type = PorousFlowPointSourceFromPostprocessor
point = ' 0 0 0'
mass_flux = 1.749872109005E-07
variable = f_Mg
[]
[inject_SiO2]
type = PorousFlowPointSourceFromPostprocessor
point = ' 0 0 0'
mass_flux = 4.100547515915E-06
variable = f_SiO2
[]
[inject_Al]
type = PorousFlowPointSourceFromPostprocessor
point = ' 0 0 0'
mass_flux = 2.502408592080E-08
variable = f_Al
[]
[inject_Cl]
type = PorousFlowPointSourceFromPostprocessor
point = ' 0 0 0'
mass_flux = 1.997260386272E-06
variable = f_Cl
[]
[inject_SO4]
type = PorousFlowPointSourceFromPostprocessor
point = ' 0 0 0'
mass_flux = 2.497372164191E-07
variable = f_SO4
[]
[inject_HCO3]
type = PorousFlowPointSourceFromPostprocessor
point = ' 0 0 0'
mass_flux = 5.003150992902E-06
variable = f_HCO3
[]
[inject_H2O]
type = PorousFlowPointSourceFromPostprocessor
point = ' 0 0 0'
mass_flux = 2.499865905987E-01
variable = porepressure
[]
[produce_H]
type = PorousFlowPeacemanBorehole
variable = f_H
SumQuantityUO = produced_mass_H
mass_fraction_component = 0
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
character = 1
[]
[produce_Na]
type = PorousFlowPeacemanBorehole
variable = f_Na
SumQuantityUO = produced_mass_Na
mass_fraction_component = 1
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
character = 1
[]
[produce_K]
type = PorousFlowPeacemanBorehole
variable = f_K
SumQuantityUO = produced_mass_K
mass_fraction_component = 2
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
character = 1
[]
[produce_Ca]
type = PorousFlowPeacemanBorehole
variable = f_Ca
SumQuantityUO = produced_mass_Ca
mass_fraction_component = 3
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
character = 1
[]
[produce_Mg]
type = PorousFlowPeacemanBorehole
variable = f_Mg
SumQuantityUO = produced_mass_Mg
mass_fraction_component = 4
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
character = 1
[]
[produce_SiO2]
type = PorousFlowPeacemanBorehole
variable = f_SiO2
SumQuantityUO = produced_mass_SiO2
mass_fraction_component = 5
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
character = 1
[]
[produce_Al]
type = PorousFlowPeacemanBorehole
variable = f_Al
SumQuantityUO = produced_mass_Al
mass_fraction_component = 6
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
character = 1
[]
[produce_Cl]
type = PorousFlowPeacemanBorehole
variable = f_Cl
SumQuantityUO = produced_mass_Cl
mass_fraction_component = 7
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
character = 1
[]
[produce_SO4]
type = PorousFlowPeacemanBorehole
variable = f_SO4
SumQuantityUO = produced_mass_SO4
mass_fraction_component = 8
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
character = 1
[]
[produce_HCO3]
type = PorousFlowPeacemanBorehole
variable = f_HCO3
SumQuantityUO = produced_mass_HCO3
mass_fraction_component = 9
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
character = 1
[]
[produce_H2O]
type = PorousFlowPeacemanBorehole
variable = porepressure
SumQuantityUO = produced_mass_H2O
mass_fraction_component = 10
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
character = 1
[]
[remove_heat_at_production_well]
type = PorousFlowPeacemanBorehole
variable = temperature
SumQuantityUO = produced_heat
point_file = production.bh
line_length = 1
bottom_p_or_t = 20E6
unit_weight = '0 0 0'
use_mobility = true
use_enthalpy = true
character = 1
[]
[]
[UserObjects]
[produced_mass_H]
type = PorousFlowSumQuantity
[]
[produced_mass_Na]
type = PorousFlowSumQuantity
[]
[produced_mass_K]
type = PorousFlowSumQuantity
[]
[produced_mass_Ca]
type = PorousFlowSumQuantity
[]
[produced_mass_Mg]
type = PorousFlowSumQuantity
[]
[produced_mass_SiO2]
type = PorousFlowSumQuantity
[]
[produced_mass_Al]
type = PorousFlowSumQuantity
[]
[produced_mass_Cl]
type = PorousFlowSumQuantity
[]
[produced_mass_SO4]
type = PorousFlowSumQuantity
[]
[produced_mass_HCO3]
type = PorousFlowSumQuantity
[]
[produced_mass_H2O]
type = PorousFlowSumQuantity
[]
[produced_heat]
type = PorousFlowSumQuantity
[]
[]
[Postprocessors]
[heat_extracted]
type = PorousFlowPlotQuantity
uo = produced_heat
[]
[approx_production_temperature]
type = PointValue
point = '100 0 0'
variable = temperature
[]
[mass_extracted_H]
type = PorousFlowPlotQuantity
uo = produced_mass_H
execute_on = 'initial timestep_end'
[]
[mass_extracted_Na]
type = PorousFlowPlotQuantity
uo = produced_mass_Na
execute_on = 'initial timestep_end'
[]
[mass_extracted_K]
type = PorousFlowPlotQuantity
uo = produced_mass_K
execute_on = 'initial timestep_end'
[]
[mass_extracted_Ca]
type = PorousFlowPlotQuantity
uo = produced_mass_Ca
execute_on = 'initial timestep_end'
[]
[mass_extracted_Mg]
type = PorousFlowPlotQuantity
uo = produced_mass_Mg
execute_on = 'initial timestep_end'
[]
[mass_extracted_SiO2]
type = PorousFlowPlotQuantity
uo = produced_mass_SiO2
execute_on = 'initial timestep_end'
[]
[mass_extracted_Al]
type = PorousFlowPlotQuantity
uo = produced_mass_Al
execute_on = 'initial timestep_end'
[]
[mass_extracted_Cl]
type = PorousFlowPlotQuantity
uo = produced_mass_Cl
execute_on = 'initial timestep_end'
[]
[mass_extracted_SO4]
type = PorousFlowPlotQuantity
uo = produced_mass_SO4
execute_on = 'initial timestep_end'
[]
[mass_extracted_HCO3]
type = PorousFlowPlotQuantity
uo = produced_mass_HCO3
execute_on = 'initial timestep_end'
[]
[mass_extracted_H2O]
type = PorousFlowPlotQuantity
uo = produced_mass_H2O
execute_on = 'initial timestep_end'
[]
[mass_extracted]
type = LinearCombinationPostprocessor
pp_names = 'mass_extracted_H mass_extracted_Na mass_extracted_K mass_extracted_Ca mass_extracted_Mg mass_extracted_SiO2 mass_extracted_Al mass_extracted_Cl mass_extracted_SO4 mass_extracted_HCO3 mass_extracted_H2O'
pp_coefs = '1 1 1 1 1 1 1 1 1 1 1'
execute_on = 'initial timestep_end'
[]
[dt]
type = TimestepSize
execute_on = 'timestep_begin'
[]
[]
[FluidProperties]
[the_simple_fluid]
type = SimpleFluidProperties
thermal_expansion = 2E-4
bulk_modulus = 2E9
viscosity = 1E-3
density0 = 980
cv = 4000.0
cp = 4000.0
porepressure_coefficient = 0
[]
[]
[PorousFlowFullySaturated]
coupling_type = ThermoHydro
porepressure = porepressure
temperature = temperature
mass_fraction_vars = 'f_H f_Na f_K f_Ca f_Mg f_SiO2 f_Al f_Cl f_SO4 f_HCO3'
save_component_rate_in = 'rate_H rate_Na rate_K rate_Ca rate_Mg rate_SiO2 rate_Al rate_Cl rate_SO4 rate_HCO3 rate_H2O' # change in kg at every node / dt
fp = the_simple_fluid
temperature_unit = Celsius
[]
[AuxVariables]
[rate_H]
[]
[rate_Na]
[]
[rate_K]
[]
[rate_Ca]
[]
[rate_Mg]
[]
[rate_SiO2]
[]
[rate_Al]
[]
[rate_Cl]
[]
[rate_SO4]
[]
[rate_HCO3]
[]
[rate_H2O]
[]
[]
[Materials]
[porosity]
type = PorousFlowPorosityConst
porosity = 0.01
[]
[permeability]
type = PorousFlowPermeabilityConst
permeability = '1E-14 0 0 0 1E-14 0 0 0 1E-14'
[]
[thermal_conductivity]
type = PorousFlowThermalConductivityIdeal
dry_thermal_conductivity = '2.5 0 0 0 2.5 0 0 0 2.5'
[]
[rock_heat]
type = PorousFlowMatrixInternalEnergy
density = 2750.0
specific_heat_capacity = 900.0
[]
[]
[Preconditioning]
active = typically_efficient
[typically_efficient]
type = SMP
full = true
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = ' hypre boomeramg'
[]
[strong]
type = SMP
full = true
petsc_options = '-ksp_diagonal_scale -ksp_diagonal_scale_fix'
petsc_options_iname = '-pc_type -sub_pc_type -sub_pc_factor_shift_type -pc_asm_overlap'
petsc_options_value = ' asm ilu NONZERO 2'
[]
[probably_too_strong]
type = SMP
full = true
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
petsc_options_value = ' lu mumps'
[]
[]
[Executioner]
type = Transient
solve_type = Newton
end_time = 31536000 #1 year
[TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 500
[]
[]
[Outputs]
exodus = true
csv = true
[]
[MultiApps]
[react]
type = TransientMultiApp
input_files = aquifer_geochemistry.i
clone_master_mesh = true
execute_on = 'timestep_end'
[]
[]
[Transfers]
[changes_due_to_flow]
type = MultiAppCopyTransfer
source_variable = 'rate_H rate_Na rate_K rate_Ca rate_Mg rate_SiO2 rate_Al rate_Cl rate_SO4 rate_HCO3 rate_H2O temperature'
variable = 'pf_rate_H pf_rate_Na pf_rate_K pf_rate_Ca pf_rate_Mg pf_rate_SiO2 pf_rate_Al pf_rate_Cl pf_rate_SO4 pf_rate_HCO3 pf_rate_H2O temperature'
to_multi_app = react
[]
[massfrac_from_geochem]
type = MultiAppCopyTransfer
source_variable = 'massfrac_H massfrac_Na massfrac_K massfrac_Ca massfrac_Mg massfrac_SiO2 massfrac_Al massfrac_Cl massfrac_SO4 massfrac_HCO3'
variable = 'f_H f_Na f_K f_Ca f_Mg f_SiO2 f_Al f_Cl f_SO4 f_HCO3'
from_multi_app = react
[]
[]
(modules/combined/examples/phase_field-mechanics/Nonconserved.i)
#
# Example 2
# Phase change driven by a mechanical (elastic) driving force.
# An oversized phase inclusion grows under a uniaxial tensile stress.
# Check the file below for comments and suggestions for parameter modifications.
#
[Mesh]
type = GeneratedMesh
dim = 2
nx = 40
ny = 40
nz = 0
xmin = 0
xmax = 50
ymin = 0
ymax = 50
zmin = 0
zmax = 0
elem_type = QUAD4
[]
[Variables]
[./eta]
order = FIRST
family = LAGRANGE
[./InitialCondition]
type = SmoothCircleIC
x1 = 0
y1 = 0
radius = 30.0
invalue = 1.0
outvalue = 0.0
int_width = 10.0
[../]
[../]
[./disp_x]
order = FIRST
family = LAGRANGE
[../]
[./disp_y]
order = FIRST
family = LAGRANGE
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y'
[../]
[./eta_bulk]
type = AllenCahn
variable = eta
f_name = F
[../]
[./eta_interface]
type = ACInterface
variable = eta
kappa_name = 1
[../]
[./time]
type = TimeDerivative
variable = eta
[../]
[]
#
# Try visualizing the stress tensor components as done in Conserved.i
#
[Materials]
[./consts]
type = GenericConstantMaterial
block = 0
prop_names = 'L'
prop_values = '1'
[../]
# matrix phase
[./stiffness_a]
type = ComputeElasticityTensor
base_name = phasea
block = 0
# lambda, mu values
C_ijkl = '7 7'
# Stiffness tensor is created from lambda=7, mu=7 for symmetric_isotropic fill method
fill_method = symmetric_isotropic
# See RankFourTensor.h for details on fill methods
[../]
[./strain_a]
type = ComputeSmallStrain
block = 0
displacements = 'disp_x disp_y'
base_name = phasea
[../]
[./stress_a]
type = ComputeLinearElasticStress
block = 0
base_name = phasea
[../]
[./elastic_free_energy_a]
type = ElasticEnergyMaterial
base_name = phasea
f_name = Fea
block = 0
args = ''
[../]
# oversized precipitate phase (simulated using thermal expansion)
[./stiffness_b]
type = ComputeElasticityTensor
base_name = phaseb
block = 0
# Stiffness tensor lambda, mu values
# Note that the two phases could have different stiffnesses.
# Try reducing the precipitate stiffness (to '1 1') rather than making it oversized
C_ijkl = '7 7'
fill_method = symmetric_isotropic
[../]
[./strain_b]
type = ComputeSmallStrain
block = 0
displacements = 'disp_x disp_y'
base_name = phaseb
eigenstrain_names = eigenstrain
[../]
[./eigenstrain_b]
type = ComputeEigenstrain
base_name = phaseb
eigen_base = '0.1 0.1 0.1'
eigenstrain_name = eigenstrain
[../]
[./stress_b]
type = ComputeLinearElasticStress
block = 0
base_name = phaseb
[../]
[./elastic_free_energy_b]
type = ElasticEnergyMaterial
base_name = phaseb
f_name = Feb
block = 0
args = ''
[../]
# Generate the global free energy from the phase free energies
[./switching]
type = SwitchingFunctionMaterial
block = 0
eta = eta
h_order = SIMPLE
[../]
[./barrier]
type = BarrierFunctionMaterial
block = 0
eta = eta
g_order = SIMPLE
[../]
[./free_energy]
type = DerivativeTwoPhaseMaterial
block = 0
f_name = F
fa_name = Fea
fb_name = Feb
eta = eta
args = ''
W = 0.1
derivative_order = 2
[../]
# Generate the global stress from the phase stresses
[./global_stress]
type = TwoPhaseStressMaterial
block = 0
base_A = phasea
base_B = phaseb
[../]
[]
[BCs]
[./bottom_y]
type = DirichletBC
variable = disp_y
boundary = 'bottom'
value = 0
[../]
[./top_y]
type = DirichletBC
variable = disp_y
boundary = 'top'
value = 5
[../]
[./left_x]
type = DirichletBC
variable = disp_x
boundary = 'left'
value = 0
[../]
[]
[Preconditioning]
# active = ' '
[./SMP]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
scheme = bdf2
# this gives best performance on 4 cores
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -sub_pc_type '
petsc_options_value = 'asm lu'
l_max_its = 30
nl_max_its = 10
l_tol = 1.0e-4
nl_rel_tol = 1.0e-8
nl_abs_tol = 1.0e-10
start_time = 0.0
num_steps = 200
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.2
[../]
[]
[Outputs]
execute_on = 'timestep_end'
exodus = true
[]
(modules/phase_field/examples/measure_interface_energy/1Dinterface_energy.i)
[Mesh]
type = GeneratedMesh
dim = 1
nx = 100
xmax = 100
xmin = 0
elem_type = EDGE
[]
[AuxVariables]
[./local_energy]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./local_free_energy]
type = TotalFreeEnergy
variable = local_energy
kappa_names = kappa_c
interfacial_vars = c
[../]
[]
[Variables]
[./c]
order = FIRST
family = LAGRANGE
scaling = 1e1
[./InitialCondition]
type = RampIC
variable = c
value_left = 0
value_right = 1
[../]
[../]
[./w]
order = FIRST
family = LAGRANGE
[../]
[]
[Kernels]
[./c_res]
type = SplitCHParsed
variable = c
f_name = F
kappa_name = kappa_c
w = w
[../]
[./w_res]
type = SplitCHWRes
variable = w
mob_name = M
[../]
[./time]
type = CoupledTimeDerivative
variable = w
v = c
[../]
[]
[Functions]
[./Int_energy]
type = ParsedFunction
symbol_values = 'total_solute Cleft Cright Fleft Fright volume'
expression = '((total_solute-Cleft*volume)/(Cright-Cleft))*Fright+(volume-(total_solute-Cleft*volume)/(Cright-Cleft))*Fleft'
symbol_names = 'total_solute Cleft Cright Fleft Fright volume'
[../]
[./Diff]
type = ParsedFunction
symbol_values = 'total_free_energy total_no_int'
symbol_names = 'total_free_energy total_no_int'
expression = total_free_energy-total_no_int
[../]
[]
[Materials]
[./consts]
type = GenericConstantMaterial
prop_names = 'kappa_c M'
prop_values = '25 150'
[../]
[./Free_energy]
type = DerivativeParsedMaterial
property_name = F
expression = 'c^2*(c-1)^2'
coupled_variables = c
derivative_order = 2
[../]
[]
[Postprocessors]
# The total free energy of the simulation cell to observe the energy reduction.
[./total_free_energy]
type = ElementIntegralVariablePostprocessor
variable = local_energy
[../]
# for testing we also monitor the total solute amount, which should be conserved,
# gives Cavg in % for this problem.
[./total_solute]
type = ElementIntegralVariablePostprocessor
variable = c
[../]
# Get simulation cell size (1D volume) from postprocessor
[./volume]
type = ElementIntegralMaterialProperty
mat_prop = 1
[../]
# Find concentration in each phase using SideAverageValue
[./Cleft]
type = SideAverageValue
boundary = left
variable = c
[../]
[./Cright]
type = SideAverageValue
boundary = right
variable = c
[../]
# Find local energy in each phase by checking boundaries
[./Fleft]
type = SideAverageValue
boundary = left
variable = local_energy
[../]
[./Fright]
type = SideAverageValue
boundary = right
variable = local_energy
[../]
# Use concentrations and energies to find total free energy without any interface,
# only applies once equilibrium is reached!!
# Difference between energy with and without interface
# gives interface energy per unit area.
[./total_no_int]
type = FunctionValuePostprocessor
function = Int_energy
[../]
[./Energy_of_Interface]
type = FunctionValuePostprocessor
function = Diff
[../]
[]
[Preconditioning]
# This preconditioner makes sure the Jacobian Matrix is fully populated. Our
# kernels compute all Jacobian matrix entries.
# This allows us to use the Newton solver below.
[./SMP]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
# Automatic differentiation provides a _full_ Jacobian in this example
# so we can safely use NEWTON for a fast solve
solve_type = 'NEWTON'
l_max_its = 15
l_tol = 1.0e-6
nl_max_its = 15
nl_rel_tol = 1.0e-10
nl_abs_tol = 1.0e-4
start_time = 0.0
# make sure that the result obtained for the interfacial free energy is fully converged
end_time = 40
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.5
[../]
[]
[Outputs]
gnuplot = true
csv = true
[./exodus]
type = Exodus
show = 'c local_energy'
execute_on = 'failed initial nonlinear timestep_end final'
[../]
[./console]
type = Console
execute_on = 'FAILED INITIAL NONLINEAR TIMESTEP_END final'
[../]
perf_graph = true
[]
(modules/combined/examples/phase_field-mechanics/Conserved.i)
#
# Example 1
# Illustrating the coupling between chemical and mechanical (elastic) driving forces.
# An oversized precipitate deforms under a uniaxial compressive stress
# Check the file below for comments and suggestions for parameter modifications.
#
[Mesh]
type = GeneratedMesh
dim = 2
nx = 40
ny = 40
nz = 0
xmin = 0
xmax = 50
ymin = 0
ymax = 50
zmin = 0
zmax = 0
elem_type = QUAD4
[]
[Variables]
[./c]
order = FIRST
family = LAGRANGE
[./InitialCondition]
type = SmoothCircleIC
x1 = 0
y1 = 0
radius = 25.0
invalue = 1.0
outvalue = 0.0
int_width = 50.0
[../]
[../]
[./w]
order = FIRST
family = LAGRANGE
[../]
[./disp_x]
order = FIRST
family = LAGRANGE
[../]
[./disp_y]
order = FIRST
family = LAGRANGE
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y'
[../]
[./c_res]
type = SplitCHParsed
variable = c
f_name = F
kappa_name = kappa_c
w = w
[../]
[./w_res]
type = SplitCHWRes
variable = w
mob_name = M
[../]
[./time]
type = CoupledTimeDerivative
variable = w
v = c
[../]
[]
#
# The AuxVariables and AuxKernels below are added to visualize the xx and yy stress tensor components
#
[AuxVariables]
[./sigma11_aux]
order = CONSTANT
family = MONOMIAL
[../]
[./sigma22_aux]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./matl_sigma11]
type = RankTwoAux
rank_two_tensor = stress
index_i = 0
index_j = 0
variable = sigma11_aux
[../]
[./matl_sigma22]
type = RankTwoAux
rank_two_tensor = stress
index_i = 1
index_j = 1
variable = sigma22_aux
[../]
[]
[Materials]
[./pfmobility]
type = GenericConstantMaterial
prop_names = 'M kappa_c'
prop_values = '1 5'
block = 0
#kappa = 0.1
#mob = 1e-3
[../]
# simple chemical free energy with a miscibility gap
[./chemical_free_energy]
type = DerivativeParsedMaterial
block = 0
property_name = Fc
coupled_variables = 'c'
constant_names = 'barr_height cv_eq'
constant_expressions = '0.1 1.0e-2'
expression = 16*barr_height*(c-cv_eq)^2*(1-cv_eq-c)^2
enable_jit = true
derivative_order = 2
[../]
# undersized solute (voidlike)
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
# lambda, mu values
C_ijkl = '7 7'
# Stiffness tensor is created from lambda=7, mu=7 using symmetric_isotropic fill method
fill_method = symmetric_isotropic
# See RankFourTensor.h for details on fill methods
# '15 15' results in a high stiffness (the elastic free energy will dominate)
# '7 7' results in a low stiffness (the chemical free energy will dominate)
[../]
[./stress]
type = ComputeLinearElasticStress
block = 0
[../]
[./var_dependence]
type = DerivativeParsedMaterial
block = 0
# eigenstrain coefficient
# -0.1 will result in an undersized precipitate
# 0.1 will result in an oversized precipitate
expression = 0.1*c
coupled_variables = c
f_name = var_dep
enable_jit = true
derivative_order = 2
[../]
[./eigenstrain]
type = ComputeVariableEigenstrain
block = 0
eigen_base = '1 1 1 0 0 0'
prefactor = var_dep
#outputs = exodus
args = 'c'
eigenstrain_name = eigenstrain
[../]
[./strain]
type = ComputeSmallStrain
block = 0
displacements = 'disp_x disp_y'
eigenstrain_names = eigenstrain
[../]
[./elastic_free_energy]
type = ElasticEnergyMaterial
f_name = Fe
block = 0
args = 'c'
derivative_order = 2
[../]
# Sum up chemical and elastic contributions
[./free_energy]
type = DerivativeSumMaterial
block = 0
property_name = F
sum_materials = 'Fc Fe'
coupled_variables = 'c'
derivative_order = 2
[../]
[]
[BCs]
[./bottom_y]
type = DirichletBC
variable = disp_y
boundary = 'bottom'
value = 0
[../]
[./top_y]
type = DirichletBC
variable = disp_y
boundary = 'top'
# prescribed displacement
# -5 will result in a compressive stress
# 5 will result in a tensile stress
value = -5
[../]
[./left_x]
type = DirichletBC
variable = disp_x
boundary = 'left'
value = 0
[../]
[]
[Preconditioning]
# active = ' '
[./SMP]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
scheme = bdf2
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -sub_pc_type '
petsc_options_value = 'asm lu'
l_max_its = 30
nl_max_its = 10
l_tol = 1.0e-4
nl_rel_tol = 1.0e-8
nl_abs_tol = 1.0e-10
start_time = 0.0
num_steps = 200
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 1
[../]
[]
[Outputs]
exodus = true
[]
(modules/combined/examples/phase_field-mechanics/kks_mechanics_VTS.i)
# KKS phase-field model coupled with elasticity using the Voigt-Taylor scheme as
# described in L.K. Aagesen et al., Computational Materials Science, 140, 10-21 (2017)
# Original run #170329e
[Mesh]
type = GeneratedMesh
dim = 3
nx = 640
ny = 1
nz = 1
xmin = -10
xmax = 10
ymin = 0
ymax = 0.03125
zmin = 0
zmax = 0.03125
elem_type = HEX8
[]
[Variables]
# order parameter
[./eta]
order = FIRST
family = LAGRANGE
[../]
# solute concentration
[./c]
order = FIRST
family = LAGRANGE
[../]
# chemical potential
[./w]
order = FIRST
family = LAGRANGE
[../]
# solute phase concentration (matrix)
[./cm]
order = FIRST
family = LAGRANGE
[../]
# solute phase concentration (precipitate)
[./cp]
order = FIRST
family = LAGRANGE
[../]
[./disp_x]
order = FIRST
family = LAGRANGE
[../]
[./disp_y]
order = FIRST
family = LAGRANGE
[../]
[./disp_z]
order = FIRST
family = LAGRANGE
[../]
[]
[ICs]
[./eta_ic]
variable = eta
type = FunctionIC
function = ic_func_eta
block = 0
[../]
[./c_ic]
variable = c
type = FunctionIC
function = ic_func_c
block = 0
[../]
[./w_ic]
variable = w
type = ConstantIC
value = 0.00991
block = 0
[../]
[./cm_ic]
variable = cm
type = ConstantIC
value = 0.131
block = 0
[../]
[./cp_ic]
variable = cp
type = ConstantIC
value = 0.236
block = 0
[../]
[]
[Functions]
[./ic_func_eta]
type = ParsedFunction
expression = '0.5*(1.0+tanh((x)/delta_eta/sqrt(2.0)))'
symbol_names = 'delta_eta'
symbol_values = '0.8034'
[../]
[./ic_func_c]
type = ParsedFunction
expression = '0.2388*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^3*(6*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^2-15*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))+10)+0.1338*(1-(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^3*(6*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^2-15*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))+10))'
symbol_names = 'delta'
symbol_values = '0.8034'
[../]
[./psi_eq_int]
type = ParsedFunction
expression = 'volume*psi_alpha'
symbol_names = 'volume psi_alpha'
symbol_values = 'volume psi_alpha'
[../]
[./gamma]
type = ParsedFunction
expression = '(psi_int - psi_eq_int) / dy / dz'
symbol_names = 'psi_int psi_eq_int dy dz'
symbol_values = 'psi_int psi_eq_int 0.03125 0.03125'
[../]
[]
[AuxVariables]
[./sigma11]
order = CONSTANT
family = MONOMIAL
[../]
[./sigma22]
order = CONSTANT
family = MONOMIAL
[../]
[./sigma33]
order = CONSTANT
family = MONOMIAL
[../]
[./e11]
order = CONSTANT
family = MONOMIAL
[../]
[./e12]
order = CONSTANT
family = MONOMIAL
[../]
[./e22]
order = CONSTANT
family = MONOMIAL
[../]
[./e33]
order = CONSTANT
family = MONOMIAL
[../]
[./e_el11]
order = CONSTANT
family = MONOMIAL
[../]
[./e_el12]
order = CONSTANT
family = MONOMIAL
[../]
[./e_el22]
order = CONSTANT
family = MONOMIAL
[../]
[./f_el]
order = CONSTANT
family = MONOMIAL
[../]
[./eigen_strain00]
order = CONSTANT
family = MONOMIAL
[../]
[./Fglobal]
order = CONSTANT
family = MONOMIAL
[../]
[./psi]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./matl_sigma11]
type = RankTwoAux
rank_two_tensor = stress
index_i = 0
index_j = 0
variable = sigma11
[../]
[./matl_sigma22]
type = RankTwoAux
rank_two_tensor = stress
index_i = 1
index_j = 1
variable = sigma22
[../]
[./matl_sigma33]
type = RankTwoAux
rank_two_tensor = stress
index_i = 2
index_j = 2
variable = sigma33
[../]
[./matl_e11]
type = RankTwoAux
rank_two_tensor = total_strain
index_i = 0
index_j = 0
variable = e11
[../]
[./matl_e12]
type = RankTwoAux
rank_two_tensor = total_strain
index_i = 0
index_j = 1
variable = e12
[../]
[./matl_e22]
type = RankTwoAux
rank_two_tensor = total_strain
index_i = 1
index_j = 1
variable = e22
[../]
[./matl_e33]
type = RankTwoAux
rank_two_tensor = total_strain
index_i = 2
index_j = 2
variable = e33
[../]
[./f_el]
type = MaterialRealAux
variable = f_el
property = f_el_mat
execute_on = timestep_end
[../]
[./GlobalFreeEnergy]
variable = Fglobal
type = KKSGlobalFreeEnergy
fa_name = fm
fb_name = fp
w = 0.0264
kappa_names = kappa
interfacial_vars = eta
[../]
[./psi_potential]
variable = psi
type = ParsedAux
coupled_variables = 'Fglobal w c f_el sigma11 e11'
expression = 'Fglobal - w*c + f_el - sigma11*e11'
[../]
[]
[BCs]
[./left_x]
type = DirichletBC
variable = disp_x
boundary = left
value = 0
[../]
[./right_x]
type = DirichletBC
variable = disp_x
boundary = right
value = 0
[../]
[./front_y]
type = DirichletBC
variable = disp_y
boundary = front
value = 0
[../]
[./back_y]
type = DirichletBC
variable = disp_y
boundary = back
value = 0
[../]
[./top_z]
type = DirichletBC
variable = disp_z
boundary = top
value = 0
[../]
[./bottom_z]
type = DirichletBC
variable = disp_z
boundary = bottom
value = 0
[../]
[]
[Materials]
# Chemical free energy of the matrix
[./fm]
type = DerivativeParsedMaterial
property_name = fm
coupled_variables = 'cm'
expression = '6.55*(cm-0.13)^2'
[../]
# Elastic energy of the matrix
[./elastic_free_energy_m]
type = ElasticEnergyMaterial
base_name = matrix
f_name = fe_m
args = ' '
outputs = exodus
[../]
# Total free energy of the matrix
[./Total_energy_matrix]
type = DerivativeSumMaterial
property_name = f_total_matrix
sum_materials = 'fm fe_m'
coupled_variables = 'cm'
[../]
# Free energy of the precipitate phase
[./fp]
type = DerivativeParsedMaterial
property_name = fp
coupled_variables = 'cp'
expression = '6.55*(cp-0.235)^2'
[../]
# Elastic energy of the precipitate
[./elastic_free_energy_p]
type = ElasticEnergyMaterial
base_name = ppt
f_name = fe_p
args = ' '
outputs = exodus
[../]
# Total free energy of the precipitate
[./Total_energy_ppt]
type = DerivativeSumMaterial
property_name = f_total_ppt
sum_materials = 'fp fe_p'
coupled_variables = 'cp'
[../]
# Total elastic energy
[./Total_elastic_energy]
type = DerivativeTwoPhaseMaterial
eta = eta
f_name = f_el_mat
fa_name = fe_m
fb_name = fe_p
outputs = exodus
W = 0
[../]
# h(eta)
[./h_eta]
type = SwitchingFunctionMaterial
h_order = HIGH
eta = eta
[../]
# g(eta)
[./g_eta]
type = BarrierFunctionMaterial
g_order = SIMPLE
eta = eta
[../]
# constant properties
[./constants]
type = GenericConstantMaterial
prop_names = 'M L kappa misfit'
prop_values = '0.7 0.7 0.01704 0.00377'
[../]
#Mechanical properties
[./Stiffness_matrix]
type = ComputeElasticityTensor
C_ijkl = '103.3 74.25 74.25 103.3 74.25 103.3 46.75 46.75 46.75'
base_name = matrix
fill_method = symmetric9
[../]
[./Stiffness_ppt]
type = ComputeElasticityTensor
C_ijkl = '100.7 71.45 71.45 100.7 71.45 100.7 50.10 50.10 50.10'
base_name = ppt
fill_method = symmetric9
[../]
[./stress_matrix]
type = ComputeLinearElasticStress
base_name = matrix
[../]
[./stress_ppt]
type = ComputeLinearElasticStress
base_name = ppt
[../]
[./strain_matrix]
type = ComputeSmallStrain
displacements = 'disp_x disp_y disp_z'
base_name = matrix
[../]
[./strain_ppt]
type = ComputeSmallStrain
displacements = 'disp_x disp_y disp_z'
base_name = ppt
eigenstrain_names = 'eigenstrain_ppt'
[../]
[./eigen_strain]
type = ComputeEigenstrain
base_name = ppt
eigen_base = '1 1 1 0 0 0'
prefactor = misfit
eigenstrain_name = 'eigenstrain_ppt'
[../]
[./global_stress]
type = TwoPhaseStressMaterial
base_A = matrix
base_B = ppt
[../]
[./global_strain]
type = ComputeSmallStrain
displacements = 'disp_x disp_y disp_z'
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
# enforce c = (1-h(eta))*cm + h(eta)*cp
[./PhaseConc]
type = KKSPhaseConcentration
ca = cm
variable = cp
c = c
eta = eta
[../]
# enforce pointwise equality of chemical potentials
[./ChemPotVacancies]
type = KKSPhaseChemicalPotential
variable = cm
cb = cp
fa_name = f_total_matrix
fb_name = f_total_ppt
[../]
#
# Cahn-Hilliard Equation
#
[./CHBulk]
type = KKSSplitCHCRes
variable = c
ca = cm
fa_name = f_total_matrix
w = w
[../]
[./dcdt]
type = CoupledTimeDerivative
variable = w
v = c
[../]
[./ckernel]
type = SplitCHWRes
mob_name = M
variable = w
[../]
#
# Allen-Cahn Equation
#
[./ACBulkF]
type = KKSACBulkF
variable = eta
fa_name = f_total_matrix
fb_name = f_total_ppt
w = 0.0264
args = 'cp cm'
[../]
[./ACBulkC]
type = KKSACBulkC
variable = eta
ca = cm
cb = cp
fa_name = f_total_matrix
[../]
[./ACInterface]
type = ACInterface
variable = eta
kappa_name = kappa
[../]
[./detadt]
type = TimeDerivative
variable = eta
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -sub_pc_type -sub_pc_factor_shift_type'
petsc_options_value = 'asm ilu nonzero'
l_max_its = 30
nl_max_its = 10
l_tol = 1.0e-4
nl_rel_tol = 1.0e-8
nl_abs_tol = 1.0e-11
num_steps = 200
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.5
[../]
[]
[VectorPostprocessors]
#[./eta]
# type = LineValueSampler
# start_point = '-10 0 0'
# end_point = '10 0 0'
# variable = eta
# num_points = 321
# sort_by = id
#[../]
#[./eta_position]
# type = FindValueOnLineSample
# vectorpostprocessor = eta
# variable_name = eta
# search_value = 0.5
#[../]
# [./f_el]
# type = LineMaterialRealSampler
# start = '-20 0 0'
# end = '20 0 0'
# sort_by = id
# property = f_el
# [../]
# [./f_el_a]
# type = LineMaterialRealSampler
# start = '-20 0 0'
# end = '20 0 0'
# sort_by = id
# property = fe_m
# [../]
# [./f_el_b]
# type = LineMaterialRealSampler
# start = '-20 0 0'
# end = '20 0 0'
# sort_by = id
# property = fe_p
# [../]
# [./h_out]
# type = LineMaterialRealSampler
# start = '-20 0 0'
# end = '20 0 0'
# sort_by = id
# property = h
# [../]
# [./fm_out]
# type = LineMaterialRealSampler
# start = '-20 0 0'
# end = '20 0 0'
# sort_by = id
# property = fm
# [../]
[]
[Postprocessors]
[./f_el_int]
type = ElementIntegralMaterialProperty
mat_prop = f_el_mat
[../]
[./c_alpha]
type = SideAverageValue
boundary = left
variable = c
[../]
[./c_beta]
type = SideAverageValue
boundary = right
variable = c
[../]
[./e11_alpha]
type = SideAverageValue
boundary = left
variable = e11
[../]
[./e11_beta]
type = SideAverageValue
boundary = right
variable = e11
[../]
[./s11_alpha]
type = SideAverageValue
boundary = left
variable = sigma11
[../]
[./s22_alpha]
type = SideAverageValue
boundary = left
variable = sigma22
[../]
[./s33_alpha]
type = SideAverageValue
boundary = left
variable = sigma33
[../]
[./s11_beta]
type = SideAverageValue
boundary = right
variable = sigma11
[../]
[./s22_beta]
type = SideAverageValue
boundary = right
variable = sigma22
[../]
[./s33_beta]
type = SideAverageValue
boundary = right
variable = sigma33
[../]
[./f_el_alpha]
type = SideAverageValue
boundary = left
variable = f_el
[../]
[./f_el_beta]
type = SideAverageValue
boundary = right
variable = f_el
[../]
[./f_c_alpha]
type = SideAverageValue
boundary = left
variable = Fglobal
[../]
[./f_c_beta]
type = SideAverageValue
boundary = right
variable = Fglobal
[../]
[./chem_pot_alpha]
type = SideAverageValue
boundary = left
variable = w
[../]
[./chem_pot_beta]
type = SideAverageValue
boundary = right
variable = w
[../]
[./psi_alpha]
type = SideAverageValue
boundary = left
variable = psi
[../]
[./psi_beta]
type = SideAverageValue
boundary = right
variable = psi
[../]
[./total_energy]
type = ElementIntegralVariablePostprocessor
variable = Fglobal
[../]
# Get simulation cell size from postprocessor
[./volume]
type = ElementIntegralMaterialProperty
mat_prop = 1
[../]
[./psi_eq_int]
type = FunctionValuePostprocessor
function = psi_eq_int
[../]
[./psi_int]
type = ElementIntegralVariablePostprocessor
variable = psi
[../]
[./gamma]
type = FunctionValuePostprocessor
function = gamma
[../]
[]
#
# Precondition using handcoded off-diagonal terms
#
[Preconditioning]
[./full]
type = SMP
full = true
[../]
[]
[Outputs]
[./exodus]
type = Exodus
time_step_interval = 20
[../]
[./csv]
type = CSV
execute_on = 'final'
[../]
#[./console]
# type = Console
# output_file = true
# [../]
[]
(modules/combined/examples/mortar/eigenstrain_action.i)
#
# Eigenstrain with Mortar gradient periodicity
#
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 50
ny = 50
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
[]
[./cnode]
input = gen
type = ExtraNodesetGenerator
coord = '0.0 0.0'
new_boundary = 100
[../]
[./anode]
input = cnode
type = ExtraNodesetGenerator
coord = '0.0 0.5'
new_boundary = 101
[../]
[]
[Modules/PhaseField/MortarPeriodicity]
[./strain]
variable = 'disp_x disp_y'
periodicity = gradient
periodic_directions = 'x y'
[../]
[]
[GlobalParams]
derivative_order = 2
enable_jit = true
displacements = 'disp_x disp_y'
[]
# AuxVars to compute the free energy density for outputting
[AuxVariables]
[./local_energy]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./local_free_energy]
type = TotalFreeEnergy
block = 0
execute_on = 'initial LINEAR'
variable = local_energy
interfacial_vars = 'c'
kappa_names = 'kappa_c'
[../]
[]
[Variables]
# Solute concentration variable
[./c]
[./InitialCondition]
type = RandomIC
min = 0.49
max = 0.51
[../]
block = 0
[../]
[./w]
block = 0
[../]
# Mesh displacement
[./disp_x]
block = 0
[../]
[./disp_y]
block = 0
[../]
[]
[Kernels]
# Set up stress divergence kernels
[./TensorMechanics]
[../]
# Cahn-Hilliard kernels
[./c_dot]
type = CoupledTimeDerivative
variable = w
v = c
[../]
[./c_res]
type = SplitCHParsed
variable = c
f_name = F
kappa_name = kappa_c
w = w
[../]
[./w_res]
type = SplitCHWRes
variable = w
mob_name = M
[../]
[]
[Materials]
# declare a few constants, such as mobilities (L,M) and interface gradient prefactors (kappa*)
[./consts]
type = GenericConstantMaterial
block = '0'
prop_names = 'M kappa_c'
prop_values = '0.2 0.01 '
[../]
[./shear1]
type = GenericConstantRankTwoTensor
block = 0
tensor_values = '0 0 0 0 0 0.5'
tensor_name = shear1
[../]
[./shear2]
type = GenericConstantRankTwoTensor
block = 0
tensor_values = '0 0 0 0 0 -0.5'
tensor_name = shear2
[../]
[./expand3]
type = GenericConstantRankTwoTensor
block = 0
tensor_values = '1 1 0 0 0 0'
tensor_name = expand3
[../]
[./weight1]
type = DerivativeParsedMaterial
block = 0
expression = '0.3*c^2'
property_name = weight1
coupled_variables = c
[../]
[./weight2]
type = DerivativeParsedMaterial
block = 0
expression = '0.3*(1-c)^2'
property_name = weight2
coupled_variables = c
[../]
[./weight3]
type = DerivativeParsedMaterial
block = 0
expression = '4*(0.5-c)^2'
property_name = weight3
coupled_variables = c
[../]
# matrix phase
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
C_ijkl = '1 1'
fill_method = symmetric_isotropic
[../]
[./strain]
type = ComputeSmallStrain
block = 0
displacements = 'disp_x disp_y'
[../]
[./eigenstrain]
type = CompositeEigenstrain
block = 0
tensors = 'shear1 shear2 expand3'
weights = 'weight1 weight2 weight3'
args = c
eigenstrain_name = eigenstrain
[../]
[./stress]
type = ComputeLinearElasticStress
block = 0
[../]
# chemical free energies
[./chemical_free_energy]
type = DerivativeParsedMaterial
block = 0
property_name = Fc
expression = '4*c^2*(1-c)^2'
coupled_variables = 'c'
outputs = exodus
output_properties = Fc
[../]
# elastic free energies
[./elastic_free_energy]
type = ElasticEnergyMaterial
f_name = Fe
block = 0
args = 'c'
outputs = exodus
output_properties = Fe
[../]
# free energy (chemical + elastic)
[./free_energy]
type = DerivativeSumMaterial
block = 0
property_name = F
sum_materials = 'Fc Fe'
coupled_variables = 'c'
[../]
[]
[BCs]
[./Periodic]
[./up_down]
primary = top
secondary = bottom
translation = '0 -1 0'
variable = 'c w'
[../]
[./left_right]
primary = left
secondary = right
translation = '1 0 0'
variable = 'c w'
[../]
[../]
# fix center point location
[./centerfix_x]
type = DirichletBC
boundary = 100
variable = disp_x
value = 0
[../]
[./centerfix_y]
type = DirichletBC
boundary = 100
variable = disp_y
value = 0
[../]
# fix side point x coordinate to inhibit rotation
[./angularfix]
type = DirichletBC
boundary = 101
variable = disp_x
value = 0
[../]
[]
[Preconditioning]
[./SMP]
type = SMP
full = true
[../]
[]
# We monitor the total free energy and the total solute concentration (should be constant)
[Postprocessors]
[./total_free_energy]
type = ElementIntegralVariablePostprocessor
block = 0
execute_on = 'initial TIMESTEP_END'
variable = local_energy
[../]
[./total_solute]
type = ElementIntegralVariablePostprocessor
block = 0
execute_on = 'initial TIMESTEP_END'
variable = c
[../]
[./min]
type = ElementExtremeValue
block = 0
execute_on = 'initial TIMESTEP_END'
value_type = min
variable = c
[../]
[./max]
type = ElementExtremeValue
block = 0
execute_on = 'initial TIMESTEP_END'
value_type = max
variable = c
[../]
[]
[Executioner]
type = Transient
scheme = bdf2
solve_type = 'PJFNK'
line_search = basic
# mortar currently does not support MPI parallelization
petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_shift_amount'
petsc_options_value = ' lu NONZERO 1e-10'
l_max_its = 30
nl_max_its = 12
l_tol = 1.0e-4
nl_rel_tol = 1.0e-8
nl_abs_tol = 1.0e-10
start_time = 0.0
num_steps = 200
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.01
[../]
[]
[Outputs]
execute_on = 'timestep_end'
print_linear_residuals = false
exodus = true
[./table]
type = CSV
delimiter = ' '
[../]
[]
(modules/richards/test/tests/buckley_leverett/bl02.i)
[Mesh]
type = GeneratedMesh
dim = 1
nx = 150
xmin = 0
xmax = 15
[]
[GlobalParams]
richardsVarNames_UO = PPNames
[]
[UserObjects]
[./PPNames]
type = RichardsVarNames
richards_vars = pressure
[../]
[./DensityConstBulk]
type = RichardsDensityConstBulk
dens0 = 1000
bulk_mod = 2.0E6
[../]
[./SeffVG]
type = RichardsSeff1VG
m = 0.8
al = 1E-3
[../]
[./RelPermPower]
type = RichardsRelPermPower
simm = 0.0
n = 2
[../]
[./Saturation]
type = RichardsSat
s_res = 0.0
sum_s_res = 0.0
[../]
[./SUPGstandard]
type = RichardsSUPGstandard
p_SUPG = 1E-5
[../]
[]
[AuxVariables]
[./Seff1VG_Aux]
[../]
[]
[AuxKernels]
active = 'calculate_seff'
[./calculate_seff]
type = RichardsSeffAux
variable = Seff1VG_Aux
seff_UO = SeffVG
pressure_vars = pressure
[../]
[]
[Variables]
[./pressure]
order = FIRST
family = LAGRANGE
[./InitialCondition]
type = FunctionIC
function = initial_pressure
[../]
[../]
[]
[BCs]
active = 'left'
[./left]
type = DirichletBC
variable = pressure
boundary = left
value = 980000
[../]
[]
[Kernels]
active = 'richardsf richardst'
[./richardst]
type = RichardsMassChange
variable = pressure
[../]
[./richardsf]
type = RichardsFlux
variable = pressure
[../]
[]
[Functions]
active = 'initial_pressure'
[./initial_pressure]
type = ParsedFunction
expression = max((1000000-x/5*1000000)-20000,-20000)
[../]
[]
[Materials]
[./rock]
type = RichardsMaterial
block = 0
mat_porosity = 0.15
mat_permeability = '1E-10 0 0 0 1E-10 0 0 0 1E-10'
density_UO = DensityConstBulk
relperm_UO = RelPermPower
SUPG_UO = SUPGstandard
sat_UO = Saturation
seff_UO = SeffVG
viscosity = 1E-3
gravity = '-1 0 0'
linear_shape_fcns = true
[../]
[]
[Preconditioning]
active = 'andy'
[./andy]
type = SMP
full = true
petsc_options = '-snes_converged_reason'
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it'
petsc_options_value = 'bcgs bjacobi 1E-10 1E-10 20'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
end_time = 50
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.01
[../]
[]
[Outputs]
file_base = bl02
time_step_interval = 1000000
exodus = true
[]
(modules/phase_field/examples/grain_growth/grain_growth_2D_voronoi_newadapt.i)
# This simulation predicts GB migration of a 2D copper polycrystal with 15 grains
# Mesh adaptivity (new system) and time step adaptivity are used
# An AuxVariable is used to calculate the grain boundary locations
# Postprocessors are used to record time step and the number of grains
# We are not using the GrainTracker in this example so the number
# of order paramaters must match the number of grains.
[Mesh]
# Mesh block. Meshes can be read in or automatically generated
type = GeneratedMesh
dim = 2 # Problem dimension
nx = 12 # Number of elements in the x-direction
ny = 12 # Number of elements in the y-direction
nz = 0 # Number of elements in the z-direction
xmin = 0 # minimum x-coordinate of the mesh
xmax = 1000 # maximum x-coordinate of the mesh
ymin = 0 # minimum y-coordinate of the mesh
ymax = 1000 # maximum y-coordinate of the mesh
zmin = 0
zmax = 0
elem_type = QUAD4 # Type of elements used in the mesh
uniform_refine = 3 # Initial uniform refinement of the mesh
parallel_type = replicated # Periodic BCs
[]
[GlobalParams]
# Parameters used by several kernels that are defined globally to simplify input file
op_num = 15 # Number of grains
var_name_base = gr # Base name of grains
[]
[UserObjects]
[./voronoi]
type = PolycrystalVoronoi
grain_num = 15
rand_seed = 42
coloring_algorithm = bt # We must use bt to force the UserObject to assign one grain to each op
[../]
[]
[ICs]
[./PolycrystalICs]
[./PolycrystalColoringIC]
polycrystal_ic_uo = voronoi
[../]
[../]
[]
[Variables]
# Variable block, where all variables in the simulation are declared
[./PolycrystalVariables]
# Custom action that created all of the grain variables and sets their initial condition
[../]
[]
[AuxVariables]
# Dependent variables
[./bnds]
# Variable used to visualize the grain boundaries in the simulation
[../]
[]
[Kernels]
# Kernel block, where the kernels defining the residual equations are set up.
[./PolycrystalKernel]
# Custom action creating all necessary kernels for grain growth. All input parameters are up in GlobalParams
[../]
[]
[AuxKernels]
# AuxKernel block, defining the equations used to calculate the auxvars
[./bnds_aux]
# AuxKernel that calculates the GB term
type = BndsCalcAux
variable = bnds
execute_on = timestep_end
[../]
[]
[BCs]
# Boundary Condition block
[./Periodic]
[./top_bottom]
auto_direction = 'x y' # Makes problem periodic in the x and y directions
[../]
[../]
[]
[Materials]
[./CuGrGr]
# Material properties
type = GBEvolution # Quantitative material properties for copper grain growth. Dimensions are nm and ns
GBmob0 = 2.5e-6 # Mobility prefactor for Cu from schonfelder1997molecular bibtex entry
GBenergy = 0.708 # GB energy for Cu from schonfelder1997molecular bibtex entry
Q = 0.23 # Activation energy for grain growth from Schonfelder 1997
T = 450 # Constant temperature of the simulation (for mobility calculation)
wGB = 14 # Width of the diffuse GB
[../]
[]
[Postprocessors]
# Scalar postprocessors
[./dt]
# Outputs the current time step
type = TimestepSize
[../]
[]
[Executioner]
type = Transient # Type of executioner, here it is transient with an adaptive time step
scheme = bdf2 # Type of time integration (2nd order backward euler), defaults to 1st order backward euler
#Preconditioned JFNK (default)
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart -mat_mffd_type'
petsc_options_value = 'hypre boomeramg 101 ds'
l_max_its = 30 # Max number of linear iterations
l_tol = 1e-4 # Relative tolerance for linear solves
nl_max_its = 40 # Max number of nonlinear iterations
nl_abs_tol = 1e-11 # Relative tolerance for nonlienar solves
nl_rel_tol = 1e-10 # Absolute tolerance for nonlienar solves
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 25 # Initial time step. In this simulation it changes.
[../]
start_time = 0.0
end_time = 4000
num_steps = 3
[]
[Adaptivity]
marker = errorfrac
max_h_level = 4
[./Indicators]
[./error]
type = GradientJumpIndicator
variable = bnds
[../]
[../]
[./Markers]
[./bound_adapt]
type = ValueThresholdMarker
third_state = DO_NOTHING
coarsen = 1.0
refine = 0.99
variable = bnds
invert = true
[../]
[./errorfrac]
type = ErrorFractionMarker
coarsen = 0.1
indicator = error
refine = 0.7
[../]
[../]
[]
[Outputs]
exodus = true
csv = true
[./console]
type = Console
max_rows = 20
[../]
[]
(test/tests/time_steppers/time_stepper_system/time_stepper_system_restart.i)
[Mesh]
type = GeneratedMesh
dim = 1
[]
[Variables]
[u]
order = CONSTANT
family = MONOMIAL
[]
[]
[Problem]
type = SlowProblem
seconds_to_sleep = '0.0 0.0 0.1 0.1 0.5 0.2 0.2 0.1 0.1 0.1'
kernel_coverage_check = false
[]
[Executioner]
type = Transient
solve_type = NEWTON
num_steps = 5
[TimeSteppers]
[SolutionTimeAdaptiveDT]
type = SolutionTimeAdaptiveDT
dt = 0.5
[]
[LogConstDT]
type = LogConstantDT
log_dt = 0.2
first_dt = 0.1
[]
[Timesequence]
type = TimeSequenceStepper
time_sequence = '0 0.12 0.2 0.5 0.6'
[]
[]
[]
[Postprocessors]
[dt]
type = TimestepSize
[]
[]
[Outputs]
[checkpoint]
type = Checkpoint
num_files = 5
[]
file_base='restart_test'
[]
(modules/phase_field/test/tests/GrandPotentialPFM/GrandPotentialMultiphase.i)
[Mesh]
type = GeneratedMesh
dim = 2
nx = 20
ny = 20
xmin = -20
xmax = 20
ymin = -20
ymax = 20
[]
[GlobalParams]
op_num = 2
var_name_base = etab
[]
[Variables]
[./w]
[../]
[./etaa0]
[../]
[./etab0]
[../]
[./etab1]
[../]
[]
[AuxVariables]
[./bnds]
order = FIRST
family = LAGRANGE
[../]
[]
[ICs]
[./IC_etaa0]
type = FunctionIC
variable = etaa0
function = ic_func_etaa0
[../]
[./IC_etab0]
type = FunctionIC
variable = etab0
function = ic_func_etab0
[../]
[./IC_etab1]
type = FunctionIC
variable = etab1
function = ic_func_etab1
[../]
[./IC_w]
type = ConstantIC
value = -0.05
variable = w
[../]
[]
[Functions]
[./ic_func_etaa0]
type = ParsedFunction
expression = 'r:=sqrt(x^2+y^2);0.5*(1.0-tanh((r-10.0)/sqrt(2.0)))'
[../]
[./ic_func_etab0]
type = ParsedFunction
expression = 'r:=sqrt(x^2+y^2);0.5*(1.0+tanh((r-10)/sqrt(2.0)))*0.5*(1.0+tanh((y)/sqrt(2.0)))'
[../]
[./ic_func_etab1]
type = ParsedFunction
expression = 'r:=sqrt(x^2+y^2);0.5*(1.0+tanh((r-10)/sqrt(2.0)))*0.5*(1.0-tanh((y)/sqrt(2.0)))'
[../]
[]
[BCs]
[]
[Kernels]
# Order parameter eta_alpha0
[./ACa0_bulk]
type = ACGrGrMulti
variable = etaa0
v = 'etab0 etab1'
gamma_names = 'gab gab'
[../]
[./ACa0_sw]
type = ACSwitching
variable = etaa0
Fj_names = 'omegaa omegab'
hj_names = 'ha hb'
coupled_variables = 'etab0 etab1 w'
[../]
[./ACa0_int]
type = ACInterface
variable = etaa0
kappa_name = kappa
[../]
[./ea0_dot]
type = TimeDerivative
variable = etaa0
[../]
# Order parameter eta_beta0
[./ACb0_bulk]
type = ACGrGrMulti
variable = etab0
v = 'etaa0 etab1'
gamma_names = 'gab gbb'
[../]
[./ACb0_sw]
type = ACSwitching
variable = etab0
Fj_names = 'omegaa omegab'
hj_names = 'ha hb'
coupled_variables = 'etaa0 etab1 w'
[../]
[./ACb0_int]
type = ACInterface
variable = etab0
kappa_name = kappa
[../]
[./eb0_dot]
type = TimeDerivative
variable = etab0
[../]
# Order parameter eta_beta1
[./ACb1_bulk]
type = ACGrGrMulti
variable = etab1
v = 'etaa0 etab0'
gamma_names = 'gab gbb'
[../]
[./ACb1_sw]
type = ACSwitching
variable = etab1
Fj_names = 'omegaa omegab'
hj_names = 'ha hb'
coupled_variables = 'etaa0 etab0 w'
[../]
[./ACb1_int]
type = ACInterface
variable = etab1
kappa_name = kappa
[../]
[./eb1_dot]
type = TimeDerivative
variable = etab1
[../]
#Chemical potential
[./w_dot]
type = SusceptibilityTimeDerivative
variable = w
f_name = chi
coupled_variables = '' # in this case chi (the susceptibility) is simply a constant
[../]
[./Diffusion]
type = MatDiffusion
variable = w
diffusivity = Dchi
args = ''
[../]
[./coupled_etaa0dot]
type = CoupledSwitchingTimeDerivative
variable = w
v = etaa0
Fj_names = 'rhoa rhob'
hj_names = 'ha hb'
coupled_variables = 'etaa0 etab0 etab1'
[../]
[./coupled_etab0dot]
type = CoupledSwitchingTimeDerivative
variable = w
v = etab0
Fj_names = 'rhoa rhob'
hj_names = 'ha hb'
coupled_variables = 'etaa0 etab0 etab1'
[../]
[./coupled_etab1dot]
type = CoupledSwitchingTimeDerivative
variable = w
v = etab1
Fj_names = 'rhoa rhob'
hj_names = 'ha hb'
coupled_variables = 'etaa0 etab0 etab1'
[../]
[]
[AuxKernels]
[./BndsCalc]
type = BndsCalcAux
variable = bnds
execute_on = timestep_end
[../]
[]
# enable_jit set to false in many materials to make this test start up faster.
# It is recommended to set enable_jit = true or just remove these lines for
# production runs with this model
[Materials]
[./ha]
type = SwitchingFunctionMultiPhaseMaterial
h_name = ha
all_etas = 'etaa0 etab0 etab1'
phase_etas = 'etaa0'
[../]
[./hb]
type = SwitchingFunctionMultiPhaseMaterial
h_name = hb
all_etas = 'etaa0 etab0 etab1'
phase_etas = 'etab0 etab1'
[../]
[./omegaa]
type = DerivativeParsedMaterial
coupled_variables = 'w'
property_name = omegaa
material_property_names = 'Vm ka caeq'
expression = '-0.5*w^2/Vm^2/ka-w/Vm*caeq'
derivative_order = 2
enable_jit = false
[../]
[./omegab]
type = DerivativeParsedMaterial
coupled_variables = 'w'
property_name = omegab
material_property_names = 'Vm kb cbeq'
expression = '-0.5*w^2/Vm^2/kb-w/Vm*cbeq'
derivative_order = 2
enable_jit = false
[../]
[./rhoa]
type = DerivativeParsedMaterial
coupled_variables = 'w'
property_name = rhoa
material_property_names = 'Vm ka caeq'
expression = 'w/Vm^2/ka + caeq/Vm'
derivative_order = 2
enable_jit = false
[../]
[./rhob]
type = DerivativeParsedMaterial
coupled_variables = 'w'
property_name = rhob
material_property_names = 'Vm kb cbeq'
expression = 'w/Vm^2/kb + cbeq/Vm'
derivative_order = 2
enable_jit = false
[../]
[./const]
type = GenericConstantMaterial
prop_names = 'kappa_c kappa L D chi Vm ka caeq kb cbeq gab gbb mu'
prop_values = '0 1 1.0 1.0 1.0 1.0 10.0 0.1 10.0 0.9 4.5 1.5 1.0'
[../]
[./Mobility]
type = DerivativeParsedMaterial
property_name = Dchi
material_property_names = 'D chi'
expression = 'D*chi'
derivative_order = 2
enable_jit = false
[../]
[]
[Preconditioning]
[./SMP]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
scheme = bdf2
petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_pc_type -pc_asm_overlap'
petsc_options_value = 'asm 31 lu 1'
l_tol = 1.0e-3
nl_rel_tol = 1.0e-8
nl_abs_tol = 1e-8
num_steps = 2
[./TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 0.1
[../]
[]
[Outputs]
exodus = true
[]