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 "PorousFlowExponentialDecay.h"
      11             : 
      12             : #include "MooseVariable.h"
      13             : 
      14             : registerMooseObject("PorousFlowApp", PorousFlowExponentialDecay);
      15             : 
      16             : InputParameters
      17          60 : PorousFlowExponentialDecay::validParams()
      18             : {
      19          60 :   InputParameters params = Kernel::validParams();
      20         120 :   params.addCoupledVar("rate", 1.0, "Rate of exponential decay");
      21         120 :   params.addCoupledVar("reference", 0.0, "Reference value of the variable");
      22          60 :   params.addClassDescription("Residual = rate * (variable - reference).  Useful for modelling "
      23             :                              "exponential decay of a variable");
      24          60 :   return params;
      25           0 : }
      26             : 
      27          33 : PorousFlowExponentialDecay::PorousFlowExponentialDecay(const InputParameters & parameters)
      28          33 :   : Kernel(parameters), _rate(coupledValue("rate")), _reference(coupledValue("reference"))
      29             : {
      30          33 : }
      31             : 
      32             : Real
      33        2112 : PorousFlowExponentialDecay::computeQpResidual()
      34             : {
      35        2112 :   return _test[_i][_qp] * _rate[_qp] * (_u[_qp] - _reference[_qp]);
      36             : }
      37             : 
      38             : Real
      39        3264 : PorousFlowExponentialDecay::computeQpJacobian()
      40             : {
      41        3264 :   return _test[_i][_qp] * _rate[_qp] * _phi[_j][_qp];
      42             : }