convection_diffusion.h

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//-----------------------------------------------------------------------bl-
//--------------------------------------------------------------------------
//
// GRINS - General Reacting Incompressible Navier-Stokes
//
// Copyright (C) 2014-2017 Paul T. Bauman, Roy H. Stogner
// Copyright (C) 2010-2013 The PECOS Development Team
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the Version 2.1 GNU Lesser General
// Public License as published by the Free Software Foundation.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc. 51 Franklin Street, Fifth Floor,
// Boston, MA  02110-1301  USA
//
//-----------------------------------------------------------------------el-

#ifndef GRINS_CONVECTION_DIFFUSION_H
#define GRINS_CONVECTION_DIFFUSION_H

// GRINS
#include "grins/physics.h"


//libMesh
#include "libmesh/parsed_function.h"

namespace GRINS
{
  // Forward declarations
  class SingleVariable;

  class ConvectionDiffusion : public Physics
  {
  public:

    ConvectionDiffusion( const GRINS::PhysicsName& physics_name, const GetPot& input );

    virtual ~ConvectionDiffusion(){};

    virtual void set_time_evolving_vars( libMesh::FEMSystem* system );

    virtual void init_context( AssemblyContext& context );

    virtual void element_time_derivative( bool compute_jacobian,
                                          AssemblyContext& context );

    virtual void mass_residual( bool compute_jacobian,
                                AssemblyContext & context );

  protected:

    std::vector<libMesh::ParsedFunction<libMesh::Number> > _v;

    libMesh::ParsedFunction<libMesh::Number> _kappa;

    SingleVariable& _var;

  private:

    ConvectionDiffusion();

  };

} // end namespace GRINS

#endif // GRINS_CONVECTION_DIFFUSION_H