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             : #pragma once
      11             : 
      12             : #include "KokkosIntegratedBCValue.h"
      13             : 
      14             : /**
      15             :  * Implements a Neumann BC where grad(u)=_coupled_var on the boundary.
      16             :  * Uses the term produced from integrating the diffusion operator by parts.
      17             :  */
      18             : class KokkosCoupledVarNeumannBC : public Moose::Kokkos::IntegratedBCValue
      19             : {
      20             : public:
      21             :   static InputParameters validParams();
      22             : 
      23             :   KokkosCoupledVarNeumannBC(const InputParameters & parameters);
      24             : 
      25             :   template <typename Derived>
      26             :   KOKKOS_FUNCTION Real computeQpResidual(const unsigned int qp, AssemblyDatum & datum) const;
      27             :   template <typename Derived>
      28             :   KOKKOS_FUNCTION Real computeQpOffDiagJacobian(const unsigned int j,
      29             :                                                 const unsigned int jvar,
      30             :                                                 const unsigned int qp,
      31             :                                                 AssemblyDatum & datum) const;
      32             : 
      33             : protected:
      34             :   /// Variable providing the value of grad(u) on the boundary.
      35             :   const Moose::Kokkos::VariableValue _coupled_var;
      36             : 
      37             :   /// The identifying number of the coupled variable
      38             :   const unsigned int _coupled_num;
      39             : 
      40             :   /// A coefficient that is multiplied with the residual contribution
      41             :   const Real _coef;
      42             : 
      43             :   /// Scale factor
      44             :   const Moose::Kokkos::VariableValue _scale_factor;
      45             : };
      46             : 
      47             : template <typename Derived>
      48             : KOKKOS_FUNCTION Real
      49       30312 : KokkosCoupledVarNeumannBC::computeQpResidual(const unsigned int qp, AssemblyDatum & datum) const
      50             : {
      51       30312 :   return -_scale_factor(datum, qp) * _coef * _coupled_var(datum, qp);
      52             : }
      53             : 
      54             : template <typename Derived>
      55             : KOKKOS_FUNCTION Real
      56          40 : KokkosCoupledVarNeumannBC::computeQpOffDiagJacobian(const unsigned int j,
      57             :                                                     const unsigned int jvar,
      58             :                                                     const unsigned int qp,
      59             :                                                     AssemblyDatum & datum) const
      60             : {
      61          40 :   if (jvar == _coupled_num)
      62          40 :     return -_scale_factor(datum, qp) * _coef * _phi(datum, j, qp);
      63             :   else
      64           0 :     return 0;
      65             : }