PorousFlowPorosityConst.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 "PorousFlowPorosityConst.h"
 
registerMooseObject("PorousFlowApp", PorousFlowPorosityConst);
 
template <>
InputParameters
validParams<PorousFlowPorosityConst>()
{
  InputParameters params = validParams<PorousFlowPorosityBase>();
  params.addRequiredCoupledVar(
      "porosity",
      "The porosity (assumed indepenent of porepressure, temperature, "
      "strain, etc, for this material).  This should be a real number, or "
      "a constant monomial variable (not a linear lagrange or other kind of variable).");
  params.addClassDescription("This Material calculates the porosity assuming it is constant");
  return params;
}
 
PorousFlowPorosityConst::PorousFlowPorosityConst(const InputParameters & parameters)
  : PorousFlowPorosityBase(parameters), _input_porosity(coupledValue("porosity"))
{
}
 
void
PorousFlowPorosityConst::initQpStatefulProperties()
{
  // note the [0] below: _phi0 is a constant monomial and we use [0] regardless of _nodal_material
  _porosity[_qp] = _input_porosity[0];
}
 
void
PorousFlowPorosityConst::computeQpProperties()
{
  initQpStatefulProperties();
 
  // The derivatives are zero for all time
  _dporosity_dvar[_qp].assign(_num_var, 0.0);
  _dporosity_dgradvar[_qp].assign(_num_var, RealGradient());
}