discretefractureprimaryvariables.hh

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// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
/*
  Copyright (C) 2011-2013 by Andreas Lauser

  This file is part of the Open Porous Media project (OPM).

  OPM is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 2 of the License, or
  (at your option) any later version.

  OPM 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 General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef EWOMS_DISCRETE_FRACTURE_PRIMARY_VARIABLES_HH
#define EWOMS_DISCRETE_FRACTURE_PRIMARY_VARIABLES_HH

#include "discretefractureproperties.hh"

#include <ewoms/models/immiscible/immiscibleprimaryvariables.hh>

namespace Ewoms {
template <class TypeTag>
class DiscreteFracturePrimaryVariables
    : public ImmisciblePrimaryVariables<TypeTag>
{
    typedef ImmisciblePrimaryVariables<TypeTag> ParentType;

    typedef typename GET_PROP_TYPE(TypeTag, Scalar) Scalar;
    typedef typename GET_PROP_TYPE(TypeTag, MaterialLaw) MaterialLaw;
    typedef typename GET_PROP_TYPE(TypeTag, MaterialLawParams) MaterialLawParams;

    enum { numPhases = GET_PROP_VALUE(TypeTag, NumPhases) };

public:
    DiscreteFracturePrimaryVariables() : ParentType()
    {}

    DiscreteFracturePrimaryVariables(Scalar value) : ParentType(value)
    {}

    DiscreteFracturePrimaryVariables(const DiscreteFracturePrimaryVariables &value)
        : ParentType(value)
    {}

    template <class FluidState>
    void assignNaiveFromFracture(const FluidState &fractureFluidState,
                                 const MaterialLawParams &matParams)
    {
        FluidState matrixFluidState;
        fractureToMatrixFluidState_(matrixFluidState, fractureFluidState,
                                    matParams);

        ParentType::assignNaive(matrixFluidState);
    }

private:
    template <class FluidState>
    void fractureToMatrixFluidState_(FluidState &matrixFluidState,
                                     const FluidState &fractureFluidState,
                                     const MaterialLawParams &matParams) const
    {
        // start with the same fluid state as in the fracture
        matrixFluidState.assign(fractureFluidState);

        // the condition for the equilibrium is that the pressures are
        // the same in the fracture and in the matrix. This means that
        // we have to find saturations for the matrix which result in
        // the same pressures as in the fracture. this can be done by
        // inverting the capillary pressure-saturation curve.
        Scalar saturations[numPhases];
        MaterialLaw::saturations(saturations, matParams, matrixFluidState);

        for (int phaseIdx = 0; phaseIdx < numPhases; ++phaseIdx)
            matrixFluidState.setSaturation(phaseIdx, saturations[phaseIdx]);
    }
};

} // namespace Ewoms

#endif