saturationreconstruction.hh

Go to the documentation of this file.

// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
/*****************************************************************************
 *   See the file COPYING for full copying permissions.                      *
 *                                                                           *
 *   This program 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 3 of the License, or       *
 *   (at your option) any later version.                                     *
 *                                                                           *
 *   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.   *
 *****************************************************************************/
#ifndef DUMUX_2P_SCV_SATURATION_RECONSTRUCTION_HH
#define DUMUX_2P_SCV_SATURATION_RECONSTRUCTION_HH
 
#include <dumux/discretization/method.hh>
 
namespace Dumux {
 
template<DiscretizationMethod M, bool enableReconstruction>
class TwoPScvSaturationReconstruction
{
public:
    template<class SpatialParams, class Element, class Scv, class ElemSol>
    static typename ElemSol::PrimaryVariables::value_type
    reconstructSn(const SpatialParams& spatialParams,
                  const Element& element,
                  const Scv& scv,
                  const ElemSol& elemSol,
                  typename ElemSol::PrimaryVariables::value_type Sn)
    { return Sn; }
};
 
template<>
class TwoPScvSaturationReconstruction<DiscretizationMethod::box, /*enableReconstruction*/true>
{
public:
    template<class SpatialParams, class Element, class Scv, class ElemSol>
    static typename ElemSol::PrimaryVariables::value_type
    reconstructSn(const SpatialParams& spatialParams,
                  const Element& element,
                  const Scv& scv,
                  const ElemSol& elemSol,
                  typename ElemSol::PrimaryVariables::value_type Sn)
    {
        // if this dof doesn't lie on a material interface, simply return Sn
        if (!spatialParams.materialInterfaceParams().isOnMaterialInterface(scv))
            return Sn;
 
        using MaterialLaw = typename SpatialParams::MaterialLaw;
        // compute capillary pressure using material parameters associated with the dof
        const auto& ifMaterialParams = spatialParams.materialInterfaceParams().getDofParams(scv);
        const auto pc = MaterialLaw::pc(ifMaterialParams, /*Sw=*/1.0 - Sn);
 
        // reconstruct by inverting the pc-sw curve
        const auto& materialLawParams = spatialParams.materialLawParams(element, scv, elemSol);
        const auto pcMin = MaterialLaw::endPointPc(materialLawParams);
 
        if (pc < pcMin && pcMin > 0.0) return 0.0;
        else return 1.0 - MaterialLaw::sw(materialLawParams, pc);
    }
};
 
} // end namespace Dumux
 
#endif