NSPressureAux.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
 
// Navier-Stokes inclues
#include "NSPressureAux.h"
#include "NS.h"
 
// FluidProperties includes
#include "IdealGasFluidProperties.h"
 
// MOOSE includes
#include "MooseMesh.h"
 
registerMooseObject("NavierStokesApp", NSPressureAux);
 
template <>
InputParameters
validParams<NSPressureAux>()
{
  InputParameters params = validParams<AuxKernel>();
 
  params.addClassDescription("Nodal auxiliary variable, for computing pressure at the nodes.");
  // Mark variables as required
  params.addRequiredCoupledVar(NS::specific_volume, "specific volume");
  params.addRequiredCoupledVar(NS::internal_energy, "internal energy");
  params.addRequiredParam<UserObjectName>("fluid_properties",
                                          "The name of the user object for fluid properties");
 
  return params;
}
 
NSPressureAux::NSPressureAux(const InputParameters & parameters)
  : AuxKernel(parameters),
    _specific_volume(coupledValue(NS::specific_volume)),
    _internal_energy(coupledValue(NS::internal_energy)),
    _fp(getUserObject<IdealGasFluidProperties>("fluid_properties"))
{
}
 
Real
NSPressureAux::computeValue()
{
  return _fp.p_from_v_e(_specific_volume[_qp], _internal_energy[_qp]);
}