Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://mooseframework.inl.gov
       3             : //*
       4             : //* All rights reserved, see COPYRIGHT for full restrictions
       5             : //* https://github.com/idaholab/moose/blob/master/COPYRIGHT
       6             : //*
       7             : //* Licensed under LGPL 2.1, please see LICENSE for details
       8             : //* https://www.gnu.org/licenses/lgpl-2.1.html
       9             : 
      10             : #include "ConvectionHeatTransferBC.h"
      11             : #include "Function.h"
      12             : 
      13             : registerMooseObject("ThermalHydraulicsApp", ConvectionHeatTransferBC);
      14             : 
      15             : InputParameters
      16          20 : ConvectionHeatTransferBC::validParams()
      17             : {
      18          20 :   InputParameters params = IntegratedBC::validParams();
      19          40 :   params.addRequiredParam<FunctionName>("T_ambient", "Ambient temperature function");
      20          40 :   params.addRequiredParam<FunctionName>("htc_ambient",
      21             :                                         "Ambient heat transfer coefficient function");
      22          40 :   params.addParam<PostprocessorName>(
      23          40 :       "scale_pp", 1.0, "Post-processor by which to scale boundary condition");
      24          20 :   params.addClassDescription("Adds a convective heat flux boundary condition with user-specified "
      25             :                              "ambient temperature and heat transfer coefficient functions");
      26          20 :   return params;
      27           0 : }
      28             : 
      29          10 : ConvectionHeatTransferBC::ConvectionHeatTransferBC(const InputParameters & parameters)
      30             :   : IntegratedBC(parameters),
      31          10 :     _T_ambient_fn(getFunction("T_ambient")),
      32          10 :     _htc_ambient_fn(getFunction("htc_ambient")),
      33          20 :     _scale_pp(getPostprocessorValue("scale_pp"))
      34             : {
      35          10 : }
      36             : 
      37             : Real
      38         720 : ConvectionHeatTransferBC::computeQpResidual()
      39             : {
      40         720 :   return _scale_pp * _htc_ambient_fn.value(_t, _q_point[_qp]) *
      41         720 :          (_u[_qp] - _T_ambient_fn.value(_t, _q_point[_qp])) * _test[_i][_qp];
      42             : }
      43             : 
      44             : Real
      45         320 : ConvectionHeatTransferBC::computeQpJacobian()
      46             : {
      47         320 :   return _scale_pp * _htc_ambient_fn.value(_t, _q_point[_qp]) * _phi[_j][_qp] * _test[_i][_qp];
      48             : }