IdealGasFreeEnergy.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 "IdealGasFreeEnergy.h"
 
registerMooseObject("PhaseFieldApp", IdealGasFreeEnergy);
 
template <>
InputParameters
validParams<IdealGasFreeEnergy>()
{
  InputParameters params = validParams<GasFreeEnergyBase>();
  params.addClassDescription("Free energy of an ideal gas.");
  return params;
}
 
IdealGasFreeEnergy::IdealGasFreeEnergy(const InputParameters & parameters)
  : GasFreeEnergyBase(parameters)
{
  // Definition of the free energy for the expression builder
  EBFunction free_energy;
  free_energy(_c, _T) = -_n * _kB * _T * (log(_nq / _n) + 1.0);
 
  // Parse function for automatic differentiation
  functionParse(free_energy);
}