FitzhughNagumo.h

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///////////////////////////////////////////////////////////////////////////////
//
// File: FitzhughNagumo.h
//
// For more information, please see: http://www.nektar.info
//
// 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
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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//
// Description: Fitzhugh-Nagumo phenomological cell model.
//
///////////////////////////////////////////////////////////////////////////////
 
#ifndef NEKTAR_SOLVERS_ADRSOLVER_CELLMODELS_FITZHUGHNAGUMO
#define NEKTAR_SOLVERS_ADRSOLVER_CELLMODELS_FITZHUGHNAGUMO
 
#include <CardiacEPSolver/CellModels/CellModel.h>
 
namespace Nektar
{
/// FitzHugh-Nagumo model.
class CellModelFitzHughNagumo : public CellModel
{
public:
    /// Creates an instance of this class
    static CellModelSharedPtr create(
        const LibUtilities::SessionReaderSharedPtr &pSession,
        const MultiRegions::ExpListSharedPtr &pField)
    {
        return MemoryManager<CellModelFitzHughNagumo>::AllocateSharedPtr(
            pSession, pField);
    }
 
    /// Name of class
    static std::string className;
 
    CellModelFitzHughNagumo(
        const LibUtilities::SessionReaderSharedPtr &pSession,
        const MultiRegions::ExpListSharedPtr &pField);
 
    ~CellModelFitzHughNagumo() override
    {
    }
 
protected:
    void v_Update(const Array<OneD, const Array<OneD, NekDouble>> &inarray,
                  Array<OneD, Array<OneD, NekDouble>> &outarray,
                  const NekDouble time) override;
 
    void v_GenerateSummary(SummaryList &s) override;
 
    void v_SetInitialConditions() override;
 
private:
    NekDouble m_beta;
    NekDouble m_epsilon;
 
    /// Temporary space for storing \f$u^3\f$ when computing reaction term.
    Array<OneD, NekDouble> m_uuu;
};
} // namespace Nektar
#endif /* FITZHUGHNAGUMO_H_ */