Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://www.mooseframework.org
       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 "KokkosLinearFVBoundaryCondition.h"
      13             : #include "KokkosParsedFunction.h"
      14             : 
      15             : /**
      16             :  * Provides prescribed outward normal gradient relations for Kokkos linear finite volume kernels.
      17             :  */
      18             : class KokkosLinearFVFunctorNeumannBC : public Moose::Kokkos::LinearFVBoundaryCondition
      19             : {
      20             : public:
      21             :   static InputParameters validParams();
      22             : 
      23             :   KokkosLinearFVFunctorNeumannBC(const InputParameters & parameters);
      24             : 
      25             :   template <typename Derived>
      26             :   KOKKOS_FUNCTION BoundaryRelation computeBoundaryValue(const FVDatum & datum) const;
      27             :   template <typename Derived>
      28             :   KOKKOS_FUNCTION BoundaryRelation computeBoundaryNormalGradient(const FVDatum & datum) const;
      29             : 
      30             : private:
      31             :   /// The functor providing the outward normal gradient on the boundary
      32             :   const Moose::Kokkos::ReferenceWrapper<const KokkosParsedFunction> _normal_gradient_functor;
      33             : };
      34             : 
      35             : template <typename Derived>
      36             : KOKKOS_FUNCTION KokkosLinearFVFunctorNeumannBC::BoundaryRelation
      37          14 : KokkosLinearFVFunctorNeumannBC::computeBoundaryValue(const FVDatum & datum) const
      38             : {
      39          14 :   return {1, _normal_gradient_functor->value(_t, datum.faceCentroid()) * datum.faceDCFMag()};
      40             : }
      41             : 
      42             : template <typename Derived>
      43             : KOKKOS_FUNCTION KokkosLinearFVFunctorNeumannBC::BoundaryRelation
      44         510 : KokkosLinearFVFunctorNeumannBC::computeBoundaryNormalGradient(const FVDatum & datum) const
      45             : {
      46         510 :   return {0, _normal_gradient_functor->value(_t, datum.faceCentroid())};
      47             : }