VertexCFD_Closure_RADBADExactSolution.hpp

#ifndef VERTEXCFD_CLOSURE_RADBADExactSolution_HPP
#define VERTEXCFD_CLOSURE_RADBADExactSolution_HPP
 
#include "rad_solver/species_properties/VertexCFD_ConstantSpeciesProperties.hpp"
#include "utils/VertexCFD_Utils_Constants.hpp"
 
#include <Panzer_Dimension.hpp>
#include <Panzer_Evaluator_WithBaseImpl.hpp>
 
#include <Phalanx_Evaluator_Derived.hpp>
#include <Phalanx_Evaluator_WithBaseImpl.hpp>
#include <Phalanx_FieldManager.hpp>
#include <Phalanx_config.hpp>
 
#include <Teuchos_ParameterList.hpp>
 
#include <Kokkos_Core.hpp>
 
namespace VertexCFD
{
namespace ClosureModel
{
//---------------------------------------------------------------------------//
// Bateman Advection Diffusion equation exact solution.
//---------------------------------------------------------------------------//
template<class EvalType, class Traits, int NumSpaceDim>
class RADBADExactSolution : public panzer::EvaluatorWithBaseImpl<Traits>,
                            public PHX::EvaluatorDerived<EvalType, Traits>
{
  public:
    using scalar_type = typename EvalType::ScalarT;
    static constexpr int num_space_dim = NumSpaceDim;
 
    RADBADExactSolution(
        const panzer::IntegrationRule& ir,
        const SpeciesProperties::ConstantSpeciesProperties& species_prop,
        const Teuchos::ParameterList& closure_params);
 
    void postRegistrationSetup(typename Traits::SetupData sd,
                               PHX::FieldManager<Traits>& fm) override;
 
    void evaluateFields(typename Traits::EvalData workset) override;
 
    KOKKOS_INLINE_FUNCTION
    void operator()(
        const Kokkos::TeamPolicy<PHX::exec_space>::member_type& team) const;
 
  private:
    int _num_species;
 
  public:
    Kokkos::Array<PHX::MDField<scalar_type, panzer::Cell, panzer::Point>,
                  VertexCFD::Constants::MAX_NUM_VIEW>
        _exact_species;
 
  private:
    int _ir_degree;
    int _ir_index;
 
    PHX::MDField<const double, panzer::Cell, panzer::Point, panzer::Dim> _ip_coords;
    Kokkos::Array<PHX::MDField<const scalar_type, panzer::Cell, panzer::Point>,
                  num_space_dim>
        _velocity;
    double _nu;
    Kokkos::View<double**, Kokkos::LayoutLeft, PHX::mem_space> _bateman_matrix;
    Kokkos::Array<double, VertexCFD::Constants::MAX_NUM_VIEW> _scale;
    bool _build_bateman;
    bool _build_advection;
    bool _build_diffusion;
    double _time;
    double _sigma;
    double _init_loc;
 
    enum TmpVars
    {
        GAUSSIAN,
        DENUM,
        SUM_K,
        PROD_L,
        LMBD_PROD,
        NUM_TMPS
    };
 
    using scratch_view
        = Kokkos::View<scalar_type**,
                       typename PHX::DevLayout<scalar_type>::type,
                       typename PHX::exec_space::scratch_memory_space,
                       Kokkos::MemoryUnmanaged>;
};
 
//---------------------------------------------------------------------------//
 
} // namespace ClosureModel
} // end namespace VertexCFD
 
#endif // VERTEXCFD_CLOSURE_RADBADExactSolution_HPP