pressure_pinning.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 PRESSURE_PINNING_H
#define PRESSURE_PINNING_H

// libMesh stuff
#include "libmesh/getpot.h"
#include "libmesh/libmesh.h"
#include "libmesh/point.h"

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

// libMesh forward declarations
class Getpot;

namespace libMesh
{
  class DiffContext;
  class MeshBase;
}

namespace GRINS
{

  class PressurePinning
  {
  public:

    PressurePinning( const GetPot& input,
                     const std::string& physics_name );
    ~PressurePinning();


    void check_pin_location( const libMesh::MeshBase& mesh );

    void pin_value( libMesh::DiffContext& context,
                    const bool request_jacobian,
                    const GRINS::VariableIndex var,
                    const double penalty = 1.0 );

  private:

    libMesh::Number _pin_value;

    libMesh::Point _pin_location;


    libMesh::dof_id_type _pinned_elem_id;

  };
}
#endif //PRESSURE_PINNING_H