porousmediumflow/2p/volumevariables.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:
//
// SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder
// SPDX-License-Identifier: GPL-3.0-or-later
//
#ifndef DUMUX_2P_VOLUME_VARIABLES_HH
#define DUMUX_2P_VOLUME_VARIABLES_HH
 
#include <dumux/porousmediumflow/volumevariables.hh>
#include <dumux/porousmediumflow/nonisothermal/volumevariables.hh>
#include <dumux/material/solidstates/updatesolidvolumefractions.hh>
#include <dumux/porousmediumflow/2p/formulation.hh>
 
namespace Dumux {
 
template <class Traits>
class TwoPVolumeVariables
: public PorousMediumFlowVolumeVariables<Traits>
, public EnergyVolumeVariables<Traits, TwoPVolumeVariables<Traits> >
{
    using ParentType = PorousMediumFlowVolumeVariables<Traits>;
    using EnergyVolVars = EnergyVolumeVariables<Traits, TwoPVolumeVariables<Traits> >;
    using PermeabilityType = typename Traits::PermeabilityType;
    using ModelTraits = typename Traits::ModelTraits;
    using Idx = typename ModelTraits::Indices;
    using Scalar = typename Traits::PrimaryVariables::value_type;
    using FS = typename Traits::FluidSystem;
    static constexpr int numFluidComps = ParentType::numFluidComponents();
    enum
    {
        pressureIdx = Idx::pressureIdx,
        saturationIdx = Idx::saturationIdx,
 
        phase0Idx = FS::phase0Idx,
        phase1Idx = FS::phase1Idx
    };
 
    static constexpr auto formulation = ModelTraits::priVarFormulation();
 
public:
    using FluidSystem = typename Traits::FluidSystem;
    using FluidState = typename Traits::FluidState;
    using Indices = typename ModelTraits::Indices;
    using SolidState = typename Traits::SolidState;
    using SolidSystem = typename Traits::SolidSystem;
 
    template<class ElemSol, class Problem, class Element, class Scv>
    void update(const ElemSol &elemSol,
                const Problem &problem,
                const Element &element,
                const Scv& scv)
    {
        ParentType::update(elemSol, problem, element, scv);
 
        completeFluidState(elemSol, problem, element, scv, fluidState_, solidState_);
 
        const auto& spatialParams = problem.spatialParams();
        const auto fluidMatrixInteraction = spatialParams.fluidMatrixInteraction(element, scv, elemSol);
 
        const int wPhaseIdx = fluidState_.wettingPhase();
        const int nPhaseIdx = 1 - wPhaseIdx;
 
        mobility_[wPhaseIdx] =
            fluidMatrixInteraction.krw(fluidState_.saturation(wPhaseIdx))
            / fluidState_.viscosity(wPhaseIdx);
 
        mobility_[nPhaseIdx] =
            fluidMatrixInteraction.krn(fluidState_.saturation(wPhaseIdx))
            / fluidState_.viscosity(nPhaseIdx);
 
        // porosity calculation over inert volumefraction
        updateSolidVolumeFractions(elemSol, problem, element, scv, solidState_, numFluidComps);
        EnergyVolVars::updateSolidEnergyParams(elemSol, problem, element, scv, solidState_);
        permeability_ = spatialParams.permeability(element, scv, elemSol);
        EnergyVolVars::updateEffectiveThermalConductivity();
    }
 
    template<class ElemSol, class Problem, class Element, class Scv>
    void completeFluidState(const ElemSol& elemSol,
                            const Problem& problem,
                            const Element& element,
                            const Scv& scv,
                            FluidState& fluidState,
                            SolidState& solidState)
    {
        EnergyVolVars::updateTemperature(elemSol, problem, element, scv, fluidState, solidState);
 
        const auto& spatialParams = problem.spatialParams();
        const auto fluidMatrixInteraction = spatialParams.fluidMatrixInteraction(element, scv, elemSol);
 
        const auto& priVars = elemSol[scv.localDofIndex()];
 
        const auto wPhaseIdx = spatialParams.template wettingPhase<FluidSystem>(element, scv, elemSol);
        fluidState.setWettingPhase(wPhaseIdx);
        if (formulation == TwoPFormulation::p0s1)
        {
            fluidState.setPressure(phase0Idx, priVars[pressureIdx]);
            if (fluidState.wettingPhase() == phase1Idx)
            {
                fluidState.setSaturation(phase1Idx, priVars[saturationIdx]);
                fluidState.setSaturation(phase0Idx, 1 - priVars[saturationIdx]);
                pc_ = fluidMatrixInteraction.pc(fluidState.saturation(wPhaseIdx));
                fluidState.setPressure(phase1Idx, priVars[pressureIdx] - pc_);
            }
            else
            {
                const auto Sn = Traits::SaturationReconstruction::reconstructSn(spatialParams, element,
                                                                                scv, elemSol, priVars[saturationIdx]);
                fluidState.setSaturation(phase1Idx, Sn);
                fluidState.setSaturation(phase0Idx, 1 - Sn);
                pc_ = fluidMatrixInteraction.pc(fluidState.saturation(wPhaseIdx));
                fluidState.setPressure(phase1Idx, priVars[pressureIdx] + pc_);
            }
        }
        else if (formulation == TwoPFormulation::p1s0)
        {
            fluidState.setPressure(phase1Idx, priVars[pressureIdx]);
            if (wPhaseIdx == phase1Idx)
            {
                const auto Sn = Traits::SaturationReconstruction::reconstructSn(spatialParams, element,
                                                                                scv, elemSol, priVars[saturationIdx]);
                fluidState.setSaturation(phase0Idx, Sn);
                fluidState.setSaturation(phase1Idx, 1 - Sn);
                pc_ = fluidMatrixInteraction.pc(fluidState.saturation(wPhaseIdx));
                fluidState.setPressure(phase0Idx, priVars[pressureIdx] + pc_);
            }
            else
            {
                fluidState.setSaturation(phase0Idx, priVars[saturationIdx]);
                fluidState.setSaturation(phase1Idx, 1 - priVars[saturationIdx]);
                pc_ = fluidMatrixInteraction.pc(fluidState.saturation(wPhaseIdx));
                fluidState.setPressure(phase0Idx, priVars[pressureIdx] - pc_);
            }
        }
 
        typename FluidSystem::ParameterCache paramCache;
        paramCache.updateAll(fluidState);
 
        for (int phaseIdx = 0; phaseIdx < ModelTraits::numFluidPhases(); ++phaseIdx) {
            // compute and set the viscosity
            Scalar mu = FluidSystem::viscosity(fluidState, paramCache, phaseIdx);
            fluidState.setViscosity(phaseIdx, mu);
 
            // compute and set the density
            Scalar rho = FluidSystem::density(fluidState, paramCache, phaseIdx);
            fluidState.setDensity(phaseIdx, rho);
 
            // compute and set the enthalpy
            Scalar h = EnergyVolVars::enthalpy(fluidState, paramCache, phaseIdx);
            fluidState.setEnthalpy(phaseIdx, h);
        }
    }
 
    const FluidState &fluidState() const
    { return fluidState_; }
 
    const SolidState &solidState() const
    { return solidState_; }
 
    Scalar saturation(int phaseIdx) const
    { return fluidState_.saturation(phaseIdx); }
 
    Scalar density(int phaseIdx) const
    { return fluidState_.density(phaseIdx); }
 
    Scalar pressure(int phaseIdx) const
    { return fluidState_.pressure(phaseIdx); }
 
    Scalar capillaryPressure() const
    { return pc_; }
 
    Scalar temperature() const
    { return fluidState_.temperature(/*phaseIdx=*/0); }
 
    Scalar viscosity(int phaseIdx) const
    { return fluidState_.viscosity(phaseIdx); }
 
    Scalar mobility(int phaseIdx) const
    { return mobility_[phaseIdx]; }
 
    Scalar porosity() const
    { return solidState_.porosity(); }
 
    const PermeabilityType& permeability() const
    { return permeability_; }
 
    int wettingPhase() const
    {  return fluidState_.wettingPhase(); }
 
protected:
    FluidState fluidState_;
    SolidState solidState_;
 
private:
    Scalar pc_;
    Scalar porosity_;
    PermeabilityType permeability_;
    Scalar mobility_[ModelTraits::numFluidPhases()];
};
 
} // end namespace Dumux
 
#endif