NonconservedAction.C

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//* This file is part of the MOOSE framework
//* https://www.mooseframework.org
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#include "NonconservedAction.h"
 
// MOOSE includes
#include "Conversion.h"
#include "FEProblem.h"
#include "Factory.h"
#include "MooseObjectAction.h"
#include "MooseMesh.h"
 
#include "libmesh/string_to_enum.h"
 
registerMooseAction("PhaseFieldApp", NonconservedAction, "add_variable");
 
registerMooseAction("PhaseFieldApp", NonconservedAction, "add_kernel");
 
template <>
InputParameters
validParams<NonconservedAction>()
{
  InputParameters params = validParams<Action>();
  params.addClassDescription(
      "Set up the variable and the kernels needed for a non-conserved phase field variable");
  // Get MooseEnums for the possible order/family options for this variable
  MooseEnum families(AddVariableAction::getNonlinearVariableFamilies());
  MooseEnum orders(AddVariableAction::getNonlinearVariableOrders());
  params.addParam<MooseEnum>("family",
                             families,
                             "Specifies the family of FE "
                             "shape functions to use for this variable");
  params.addParam<MooseEnum>("order",
                             orders,
                             "Specifies the order of the FE "
                             "shape function to use for this variable");
  params.addParam<Real>("scaling", 1.0, "Specifies a scaling factor to apply to this variable");
  params.addParam<bool>("implicit", true, "Whether kernels are implicit or not");
  params.addParam<bool>(
      "use_displaced_mesh", false, "Whether to use displaced mesh in the kernels");
  params.addParamNamesToGroup("scaling implicit use_displaced_mesh", "Advanced");
  params.addParam<MaterialPropertyName>("mobility", "L", "The mobility used with the kernel");
  params.addParam<std::vector<VariableName>>("args",
                                             "Vector of variable arguments this kernel depends on");
  params.addRequiredParam<MaterialPropertyName>(
      "free_energy", "Base name of the free energy function F defined in a free energy material");
  params.addParam<MaterialPropertyName>("kappa", "kappa_op", "The kappa used with the kernel");
  params.addParam<bool>("variable_mobility",
                        true,
                        "The mobility is a function of any MOOSE variable (if "
                        "this is set to false, L must be constant over the "
                        "entire domain!)");
 
  return params;
}
 
NonconservedAction::NonconservedAction(const InputParameters & params)
  : Action(params),
    _var_name(name()),
    _fe_type(Utility::string_to_enum<Order>(getParam<MooseEnum>("order")),
             Utility::string_to_enum<FEFamily>(getParam<MooseEnum>("family")))
{
}
 
void
NonconservedAction::act()
{
  //
  // Add variable
  //
  if (_current_task == "add_variable")
  {
    auto type = AddVariableAction::determineType(_fe_type, 1);
    auto var_params = _factory.getValidParams(type);
 
    var_params.applySpecificParameters(_pars, {"family", "order"});
    var_params.set<std::vector<Real>>("scaling") = {getParam<Real>("scaling")};
 
    // Create nonconserved variable
    _problem->addVariable(type, _var_name, var_params);
  }
 
  //
  // Add Kernels
  //
  else if (_current_task == "add_kernel")
  {
    // Add time derivative kernel
    std::string kernel_type = "TimeDerivative";
 
    std::string kernel_name = _var_name + "_" + kernel_type;
    InputParameters params1 = _factory.getValidParams(kernel_type);
    params1.set<NonlinearVariableName>("variable") = _var_name;
    params1.applyParameters(parameters());
 
    _problem->addKernel(kernel_type, kernel_name, params1);
 
    // Add AllenCahn kernel
    kernel_type = "AllenCahn";
 
    kernel_name = _var_name + "_" + kernel_type;
    InputParameters params2 = _factory.getValidParams(kernel_type);
    params2.set<NonlinearVariableName>("variable") = _var_name;
    params2.set<MaterialPropertyName>("mob_name") = getParam<MaterialPropertyName>("mobility");
    params2.set<MaterialPropertyName>("f_name") = getParam<MaterialPropertyName>("free_energy");
    params2.applyParameters(parameters());
 
    _problem->addKernel(kernel_type, kernel_name, params2);
 
    // Add ACInterface kernel
    kernel_type = "ACInterface";
 
    kernel_name = _var_name + "_" + kernel_type;
    InputParameters params3 = _factory.getValidParams(kernel_type);
    params3.set<NonlinearVariableName>("variable") = _var_name;
    params3.set<MaterialPropertyName>("mob_name") = getParam<MaterialPropertyName>("mobility");
    params3.set<MaterialPropertyName>("kappa_name") = getParam<MaterialPropertyName>("kappa");
    params3.set<bool>("variable_L") = getParam<bool>("variable_mobility");
    params3.applyParameters(parameters());
 
    _problem->addKernel(kernel_type, kernel_name, params3);
  }
}