ScalarUpwAdvDiffElemKernel.h

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/*------------------------------------------------------------------------*/
/*  Copyright 2014 National Renewable Energy Laboratory.                  */
/*  This software is released under the license detailed                  */
/*  in the file, LICENSE, which is located in the top-level Nalu          */
/*  directory structure                                                   */
/*------------------------------------------------------------------------*/

#ifndef SCALARUPWADVDIFFELEMKERNEL_H
#define SCALARUPWADVDIFFELEMKERNEL_H

#include "Kernel.h"
#include "FieldTypeDef.h"

#include <stk_mesh/base/BulkData.hpp>
#include <stk_mesh/base/Entity.hpp>

#include <Kokkos_Core.hpp>

namespace sierra {
namespace nalu {

class SolutionOptions;
class MasterElement;
class ElemDataRequests;
class PecletFunction;
class EquationSystem;

template<typename AlgTraits>
class ScalarUpwAdvDiffElemKernel: public Kernel
{
public:
  ScalarUpwAdvDiffElemKernel(
    const stk::mesh::BulkData&,
    const SolutionOptions&,
    EquationSystem*,
    ScalarFieldType*,
    VectorFieldType*,
    ScalarFieldType*,
    ElemDataRequests&);

  virtual ~ScalarUpwAdvDiffElemKernel();

  virtual void setup(const TimeIntegrator&);

  virtual void execute(
    SharedMemView<DoubleType**>&,
    SharedMemView<DoubleType*>&,
    ScratchViews<DoubleType>&);

  virtual DoubleType van_leer(
    const DoubleType &dqm,
    const DoubleType &dqp);

private:
  ScalarUpwAdvDiffElemKernel() = delete;

  const SolutionOptions& solnOpts_;

  ScalarFieldType *scalarQ_{nullptr};
  VectorFieldType *Gjq_{nullptr};
  ScalarFieldType *diffFluxCoeff_{nullptr};
  VectorFieldType *velocityRTM_{nullptr};
  ScalarFieldType *density_{nullptr};
  VectorFieldType *coordinates_{nullptr};
  GenericFieldType *massFlowRate_{nullptr};

  const int* lrscv_;

  const std::string dofName_;

  double alpha_;
  double alphaUpw_;
  double hoUpwind_;
  bool useLimiter_;
  double om_alpha_;
  double om_alphaUpw_;
  const bool shiftedGradOp_;
  const double small_{1.0e-16};

  PecletFunction* pecletFunction_{nullptr};

  Kokkos::View<DoubleType[AlgTraits::numScsIp_][AlgTraits::nodesPerElement_]> v_shape_function_ { "view_shape_func" };

};

}  // nalu
}  // sierra

#endif /* SCALARUPWADVDIFFELEMKERNEL_H */