InfiniteCylinderRadiativeBC.C

Go to the documentation of this file.

//* 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 "InfiniteCylinderRadiativeBC.h"
#include "MathUtils.h"
 
registerMooseObject("HeatConductionApp", InfiniteCylinderRadiativeBC);
 
defineLegacyParams(InfiniteCylinderRadiativeBC);
 
InputParameters
InfiniteCylinderRadiativeBC::validParams()
{
  InputParameters params = RadiativeHeatFluxBCBase::validParams();
  params.addParam<Real>("cylinder_emissivity",
                        1,
                        "Emissivity of the cylinder in radiative heat transfer with the boundary.");
  params.addRequiredParam<Real>("boundary_radius",
                                "Radius of the boundary approximated as cylinder.");
  params.addRequiredParam<Real>("cylinder_radius",
                                "Radius of the cylinder on the outside of the boundary.");
  params.addClassDescription("Boundary condition for radiative heat exchange with a cylinder"
                             "where the boundary is approximated as a cylinder as well.");
  return params;
}
 
InfiniteCylinderRadiativeBC::InfiniteCylinderRadiativeBC(const InputParameters & parameters)
  : RadiativeHeatFluxBCBase(parameters),
    _eps_cylinder(getParam<Real>("cylinder_emissivity")),
    _boundary_radius(getParam<Real>("boundary_radius")),
    _cylinder_radius(getParam<Real>("cylinder_radius"))
{
  _coefficient =
      _eps_boundary * _eps_cylinder * _cylinder_radius /
      (_eps_cylinder * _cylinder_radius + _eps_boundary * _boundary_radius * (1 - _eps_cylinder));
}
 
Real
InfiniteCylinderRadiativeBC::coefficient() const
{
  return _coefficient;
}