EffToAbsLaw.hpp

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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:
/*
  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/>.
 
  Consult the COPYING file in the top-level source directory of this
  module for the precise wording of the license and the list of
  copyright holders.
*/
#ifndef OPM_EFF_TO_ABS_LAW_HPP
#define OPM_EFF_TO_ABS_LAW_HPP
 
#include "EffToAbsLawParams.hpp"
 
#include <opm/material/fluidstates/SaturationOverlayFluidState.hpp>
 
namespace Opm {
template <class EffLawT, class ParamsT = EffToAbsLawParams<typename EffLawT::Params, EffLawT::numPhases> >
class EffToAbsLaw : public EffLawT::Traits
{
    typedef EffLawT EffLaw;
 
public:
    typedef typename EffLaw::Traits Traits;
    typedef ParamsT Params;
    typedef typename EffLaw::Scalar Scalar;

    static const int numPhases = EffLaw::numPhases;

    static const bool implementsTwoPhaseApi = EffLaw::implementsTwoPhaseApi;

    static const bool implementsTwoPhaseSatApi = EffLaw::implementsTwoPhaseSatApi;

    static const bool isSaturationDependent = EffLaw::isSaturationDependent;

    static const bool isPressureDependent = EffLaw::isPressureDependent;

    static const bool isTemperatureDependent = EffLaw::isTemperatureDependent;

    static const bool isCompositionDependent = EffLaw::isCompositionDependent;

    template <class Container, class FluidState>
    static void capillaryPressures(Container& values, const Params& params, const FluidState& fs)
    {
        typedef SaturationOverlayFluidState<FluidState> OverlayFluidState;
 
        OverlayFluidState overlayFs(fs);
        for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
            overlayFs.setSaturation(phaseIdx,
                                    effectiveSaturation(params,
                                                        fs.saturation(phaseIdx),
                                                        phaseIdx));
        }
 
        EffLaw::template capillaryPressures<Container, OverlayFluidState>(values, params, overlayFs);
    }

    template <class Container, class FluidState>
    static void relativePermeabilities(Container& values, const Params& params, const FluidState& fs)
    {
        typedef SaturationOverlayFluidState<FluidState> OverlayFluidState;
 
        OverlayFluidState overlayFs(fs);
        for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
            overlayFs.setSaturation(phaseIdx,
                                    effectiveSaturation(params,
                                                        fs.saturation(phaseIdx),
                                                        phaseIdx));
        }
 
        EffLaw::template relativePermeabilities<Container, OverlayFluidState>(values, params, overlayFs);
    }

    template <class FluidState, class Evaluation = typename FluidState::Scalar>
    static Evaluation pcnw(const Params& params, const FluidState& fs)
    {
        typedef SaturationOverlayFluidState<FluidState> OverlayFluidState;
 
        static_assert(FluidState::numPhases == numPhases,
                      "The fluid state and the material law must exhibit the same "
                      "number of phases!");
 
        OverlayFluidState overlayFs(fs);
        for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
            overlayFs.setSaturation(phaseIdx,
                                    effectiveSaturation(params,
                                                        fs.saturation(phaseIdx),
                                                        phaseIdx));
        }
 
        return EffLaw::template pcnw<OverlayFluidState, Evaluation>(params, overlayFs);
    }
 
    template <class Evaluation>
    static typename std::enable_if<implementsTwoPhaseSatApi, Evaluation>::type
    twoPhaseSatPcnw(const Params& params, const Evaluation& SwAbs)
    {
        const Evaluation& SwEff = effectiveSaturation(params, SwAbs, Traits::wettingPhaseIdx);
 
        return EffLaw::twoPhaseSatPcnw(params, SwEff);
    }

    template <class Container, class FluidState>
    static void saturations(Container& values, const Params& params, const FluidState& fs)
    {
        EffLaw::template saturations<Container, FluidState>(values, params, fs);
        for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++phaseIdx) {
            values[phaseIdx] = absoluteSaturation(params, values[phaseIdx], phaseIdx);
        }
    }

    template <class FluidState, class Evaluation = typename FluidState::Scalar>
    static Evaluation Sw(const Params& params, const FluidState& fs)
    {
        return absoluteSaturation(params,
                                  EffLaw::template Sw<FluidState, Evaluation>(params, fs),
                                  Traits::wettingPhaseIdx);
    }
 
    template <class Evaluation>
    static typename std::enable_if<implementsTwoPhaseSatApi, Evaluation>::type
    twoPhaseSatSw(const Params& params, const Evaluation& Sw)
    { return absoluteSaturation(params,
                                EffLaw::twoPhaseSatSw(params, Sw),
                                Traits::wettingPhaseIdx); }

    template <class FluidState, class Evaluation = typename FluidState::Scalar>
    static Evaluation Sn(const Params& params, const FluidState& fs)
    {
        return absoluteSaturation(params,
                                  EffLaw::template Sn<FluidState, Evaluation>(params, fs),
                                  Traits::nonWettingPhaseIdx);
    }
 
    template <class Evaluation>
    static typename std::enable_if<implementsTwoPhaseSatApi, Evaluation>::type
    twoPhaseSatSn(const Params& params, const Evaluation& Sw)
    {
        return absoluteSaturation(params,
                                  EffLaw::twoPhaseSatSn(params, Sw),
                                  Traits::nonWettingPhaseIdx);
    }

    template <class FluidState, class Evaluation = typename FluidState::Scalar>
    static typename std::enable_if< (Traits::numPhases > 2), Evaluation>::type
    Sg(const Params& params, const FluidState& fs)
    {
        return absoluteSaturation(params,
                                  EffLaw::template Sg<FluidState, Evaluation>(params, fs),
                                  Traits::gasPhaseIdx);
    }

    template <class FluidState, class Evaluation = typename FluidState::Scalar>
    static Evaluation krw(const Params& params, const FluidState& fs)
    {
        typedef SaturationOverlayFluidState<FluidState> OverlayFluidState;
 
        static_assert(FluidState::numPhases == numPhases,
                      "The fluid state and the material law must exhibit the same "
                      "number of phases!");
 
        OverlayFluidState overlayFs(fs);
        for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
            overlayFs.setSaturation(phaseIdx,
                                    effectiveSaturation(params,
                                                        fs.saturation(phaseIdx),
                                                        phaseIdx));
        }
 
        return EffLaw::template krw<OverlayFluidState, Evaluation>(params, overlayFs);
    }
 
    template <class Evaluation>
    static typename std::enable_if<implementsTwoPhaseSatApi, Evaluation>::type
    twoPhaseSatKrw(const Params& params, const Evaluation& Sw)
    { return EffLaw::twoPhaseSatKrw(params, effectiveSaturation(params, Sw, Traits::wettingPhaseIdx)); }

    template <class FluidState, class Evaluation = typename FluidState::Scalar>
    static Evaluation krn(const Params& params, const FluidState& fs)
    {
        typedef SaturationOverlayFluidState<FluidState> OverlayFluidState;
 
        static_assert(FluidState::numPhases == numPhases,
                      "The fluid state and the material law must exhibit the same "
                      "number of phases!");
 
        OverlayFluidState overlayFs(fs);
        for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
            overlayFs.setSaturation(phaseIdx,
                                    effectiveSaturation(params,
                                                        fs.saturation(phaseIdx),
                                                        phaseIdx));
        }
 
        return EffLaw::template krn<OverlayFluidState, Evaluation>(params, overlayFs);
    }
 
    template <class Evaluation>
    static typename std::enable_if<implementsTwoPhaseSatApi, Evaluation>::type
    twoPhaseSatKrn(const Params& params, const Evaluation& Sw)
    { return EffLaw::twoPhaseSatKrn(params, effectiveSaturation(params, Sw, Traits::wettingPhaseIdx)); }

    template <class FluidState, class Evaluation = typename FluidState::Scalar>
    static typename std::enable_if< (Traits::numPhases > 2), Evaluation>::type
    krg(const Params& params, const FluidState& fs)
    {
        typedef SaturationOverlayFluidState<FluidState> OverlayFluidState;
 
        static_assert(FluidState::numPhases == numPhases,
                      "The fluid state and the material law must exhibit the same "
                      "number of phases!");
 
        OverlayFluidState overlayFs(fs);
        for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
            overlayFs.setSaturation(phaseIdx,
                                    effectiveSaturation(params,
                                                        fs.saturation(phaseIdx),
                                                        phaseIdx));
        }
 
        return EffLaw::template krg<OverlayFluidState, Evaluation>(params, overlayFs);
    }

    template <class Evaluation>
    static Evaluation effectiveSaturation(const Params& params, const Evaluation& S, unsigned phaseIdx)
    { return (S - params.residualSaturation(phaseIdx))/(1.0 - params.sumResidualSaturations()); }

    template <class Evaluation>
    static Evaluation absoluteSaturation(const Params& params, const Evaluation& S, unsigned phaseIdx)
    { return S*(1.0 - params.sumResidualSaturations()) + params.residualSaturation(phaseIdx); }
 
private:
    static Scalar dSeff_dSabs_(const Params& params, int /*phaseIdx*/)
    { return 1.0/(1 - params.sumResidualSaturations()); }

    static Scalar dSabs_dSeff_(const Params& params, int /*phaseIdx*/)
    { return 1 - params.sumResidualSaturations(); }
};
} // namespace Opm
 
#endif