EigenValuesAdvection.h

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///////////////////////////////////////////////////////////////////////////////
//
// File EigenValuesAdvection.h
//
// For more information, please see: http://www.nektar.info
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// The MIT License
//
// Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
// Department of Aeronautics, Imperial College London (UK), and Scientific
// Computing and Imaging Institute, University of Utah (USA).
//
// Permission is hereby granted, free of charge, to any person obtaining a
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// Description:
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///////////////////////////////////////////////////////////////////////////////

#ifndef NEKTAR_SOLVERS_ADRSOLVER_EQUATIONSYSTEMS_EIGENVALUESADVECTION_H
#define NEKTAR_SOLVERS_ADRSOLVER_EQUATIONSYSTEMS_EIGENVALUESADVECTION_H

#include <SolverUtils/EquationSystem.h>
#include <SolverUtils/Advection/Advection.h>
#include <SolverUtils/RiemannSolvers/RiemannSolver.h>

using namespace Nektar::SolverUtils;

namespace Nektar
{
    class EigenValuesAdvection : public EquationSystem
    {
    public:
        friend class MemoryManager<EigenValuesAdvection>;

        /// Creates an instance of this class
        static EquationSystemSharedPtr create(
            const LibUtilities::SessionReaderSharedPtr& pSession,
            const SpatialDomains::MeshGraphSharedPtr& pGraph)
        {
            EquationSystemSharedPtr p = MemoryManager<EigenValuesAdvection>
                ::AllocateSharedPtr(pSession, pGraph);
            p->InitObject();
            return p;
        }
        /// Name of class
        static std::string className;

        virtual ~EigenValuesAdvection();

    protected:
        SolverUtils::RiemannSolverSharedPtr     m_riemannSolver;
        Array<OneD, Array<OneD, NekDouble> > m_velocity;
        SolverUtils::AdvectionSharedPtr m_advObject;
        Array<OneD, NekDouble>               m_traceVn;

        EigenValuesAdvection(
            const LibUtilities::SessionReaderSharedPtr& pSession,
            const SpatialDomains::MeshGraphSharedPtr& pGraph);

        /// Get the normal velocity
        Array<OneD, NekDouble> &GetNormalVelocity();

        virtual void v_InitObject();
        virtual void v_DoInitialise();
        virtual void v_DoSolve();

        // DG Advection routines
        void GetFluxVector(
            const Array<OneD, Array<OneD, NekDouble> >               &physfield,
                  Array<OneD, Array<OneD, Array<OneD, NekDouble> > > &flux);
    };
}

#endif