FluidDensityAux.C

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* 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 "FluidDensityAux.h"
#include "SinglePhaseFluidProperties.h"

registerMooseObject("FluidPropertiesApp", FluidDensityAux);

InputParameters
FluidDensityAux::validParams()
{
  InputParameters params = AuxKernel::validParams();
  params.addRequiredCoupledVar("p", "Pressure");
  params.addRequiredCoupledVar("T", "Temperature");
  params.addRequiredParam<UserObjectName>("fp", "The name of the user object for fluid properties");
  params.addClassDescription("Computes density from pressure and temperature");
  return params;
}

FluidDensityAux::FluidDensityAux(const InputParameters & parameters)
  : AuxKernel(parameters),
    _pressure(coupledValue("p")),
    _temperature(coupledValue("T")),
    _fp(getUserObject<SinglePhaseFluidProperties>("fp"))
{
}

Real
FluidDensityAux::computeValue()
{
  return _fp.rho_from_p_T(_pressure[_qp], _temperature[_qp]);
}