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 "GapFluxModelSimple.h"
      11             : 
      12             : registerMooseObject("HeatTransferApp", GapFluxModelSimple);
      13             : 
      14             : InputParameters
      15          57 : GapFluxModelSimple::validParams()
      16             : {
      17          57 :   InputParameters params = GapFluxModelBase::validParams();
      18          57 :   params.addClassDescription("Gap flux model with a constant conductance");
      19         114 :   params.addRequiredCoupledVar("temperature", "The name of the temperature variable");
      20         114 :   params.addRequiredParam<Real>("k", "Gap conductance");
      21         114 :   params.addParam<Real>("min_gap",
      22         114 :                         1e-6,
      23             :                         "The minimum gap distance allowed. This helps with preventing the heat "
      24             :                         "flux from going to infinity as the gap approaches zero.");
      25          57 :   return params;
      26           0 : }
      27             : 
      28          30 : GapFluxModelSimple::GapFluxModelSimple(const InputParameters & parameters)
      29             :   : GapFluxModelBase(parameters),
      30          30 :     _k(getParam<Real>("k")),
      31          60 :     _min_gap(getParam<Real>("min_gap")),
      32          30 :     _primary_T(adCoupledNeighborValue("temperature")),
      33          60 :     _secondary_T(adCoupledValue("temperature"))
      34             : {
      35          30 : }
      36             : 
      37             : ADReal
      38       13428 : GapFluxModelSimple::computeFlux() const
      39             : {
      40             :   using std::max;
      41       13428 :   const auto l = max(_gap_width, _min_gap);
      42             : 
      43       40284 :   return _k * (_primary_T[_qp] - _secondary_T[_qp]) / l;
      44             : }