HeatRateExternalAppConvectionRZ.C

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#include "HeatRateExternalAppConvectionRZ.h"
#include "Function.h"

registerMooseObject("ThermalHydraulicsApp", HeatRateExternalAppConvectionRZ);

InputParameters
HeatRateExternalAppConvectionRZ::validParams()
{
  InputParameters params = SideIntegralPostprocessor::validParams();
  params += RZSymmetry::validParams();

  params.addRequiredCoupledVar("T", "Temperature");
  params.addRequiredCoupledVar("T_ext", "Temperature from external application");
  params.addRequiredCoupledVar("htc_ext", "Heat transfer coefficient from external application");
  params.addParam<FunctionName>("scale", 1.0, "Function by which to scale the heat flux");

  params.addClassDescription("Integrates a cylindrical heat structure boundary convective heat "
                             "flux from an external application");

  return params;
}

HeatRateExternalAppConvectionRZ::HeatRateExternalAppConvectionRZ(const InputParameters & parameters)
  : SideIntegralPostprocessor(parameters),
    RZSymmetry(this, parameters),

    _T(coupledValue("T")),
    _T_ext(coupledValue("T_ext")),
    _htc_ext(coupledValue("htc_ext")),
    _scale_fn(getFunction("scale"))
{
}

Real
HeatRateExternalAppConvectionRZ::computeQpIntegral()
{
  const Real circumference = computeCircumference(_q_point[_qp]);
  return _scale_fn.value(_t, _q_point[_qp]) * circumference * _htc_ext[_qp] *
         (_T_ext[_qp] - _T[_qp]);
}