porousmediumflow/3p/volumevariables.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:
//
// SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder
// SPDX-License-Identifier: GPL-3.0-or-later
//
#ifndef DUMUX_3P_VOLUME_VARIABLES_HH
#define DUMUX_3P_VOLUME_VARIABLES_HH
 
#include <dumux/material/constants.hh>
#include <dumux/material/fluidstates/immiscible.hh>
#include <dumux/porousmediumflow/volumevariables.hh>
#include <dumux/porousmediumflow/nonisothermal/volumevariables.hh>
#include <dumux/material/solidstates/updatesolidvolumefractions.hh>
 
namespace Dumux {
 
template <class Traits>
class ThreePVolumeVariables
: public PorousMediumFlowVolumeVariables<Traits>
, public EnergyVolumeVariables<Traits, ThreePVolumeVariables<Traits> >
{
    using ParentType = PorousMediumFlowVolumeVariables<Traits>;
    using EnergyVolVars = EnergyVolumeVariables<Traits, ThreePVolumeVariables<Traits> >;
 
    using Scalar = typename Traits::PrimaryVariables::value_type;
    using PermeabilityType = typename Traits::PermeabilityType;
    using Idx = typename Traits::ModelTraits::Indices;
    using FS = typename Traits::FluidSystem;
    static constexpr int numFluidComps = ParentType::numFluidComponents();
 
    enum {
        wPhaseIdx = FS::wPhaseIdx,
        gPhaseIdx = FS::gPhaseIdx,
        nPhaseIdx = FS::nPhaseIdx,
 
        swIdx = Idx::swIdx,
        snIdx = Idx::snIdx,
        pressureIdx = Idx::pressureIdx
    };
 
public:
    using FluidState = typename Traits::FluidState;
    using FluidSystem = typename Traits::FluidSystem;
    using Indices = Idx;
    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 sw = fluidState_.saturation(wPhaseIdx);
        const auto sn = fluidState_.saturation(nPhaseIdx);
 
        // mobilities
        const auto fluidMatrixInteraction = problem.spatialParams().fluidMatrixInteraction(element, scv, elemSol);
        for (int phaseIdx = 0; phaseIdx < ParentType::numFluidPhases(); ++phaseIdx)
        {
            mobility_[phaseIdx] = fluidMatrixInteraction.kr(phaseIdx, sw, sn)
                                  / fluidState_.viscosity(phaseIdx);
        }
 
        // porosity
        updateSolidVolumeFractions(elemSol, problem, element, scv, solidState_, numFluidComps);
        EnergyVolVars::updateSolidEnergyParams(elemSol, problem, element, scv, solidState_);
        permeability_ = problem.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& priVars = elemSol[scv.localDofIndex()];
 
        const auto fluidMatrixInteraction = problem.spatialParams().fluidMatrixInteraction(element, scv, elemSol);
 
        const Scalar sw = priVars[swIdx];
        const Scalar sn = priVars[snIdx];
        const Scalar sg = 1.0 - sw - sn;
 
        fluidState.setSaturation(wPhaseIdx, sw);
        fluidState.setSaturation(gPhaseIdx, sg);
        fluidState.setSaturation(nPhaseIdx, sn);
 
        /* now the pressures */
        const Scalar pg = priVars[pressureIdx];
 
        // calculate capillary pressures
        const Scalar pcgw = fluidMatrixInteraction.pcgw(sw, sn);
        const Scalar pcnw = fluidMatrixInteraction.pcnw(sw, sn);
        const Scalar pcgn = fluidMatrixInteraction.pcgn(sw, sn);
 
        const Scalar pcAlpha = fluidMatrixInteraction.pcAlpha(sw, sn);
        const Scalar pcNW1 = 0.0; // TODO: this should be possible to assign in the problem file
 
        const Scalar pn = pg- pcAlpha * pcgn - (1.0 - pcAlpha)*(pcgw - pcNW1);
        const Scalar pw = pn - pcAlpha * pcnw - (1.0 - pcAlpha)*pcNW1;
 
        fluidState.setPressure(wPhaseIdx, pw);
        fluidState.setPressure(gPhaseIdx, pg);
        fluidState.setPressure(nPhaseIdx, pn);
 
        typename FluidSystem::ParameterCache paramCache;
        paramCache.updateAll(fluidState);
 
        for (int phaseIdx = 0; phaseIdx < ParentType::numFluidPhases(); ++phaseIdx)
        {
            // compute and set the viscosity
            const Scalar mu = FluidSystem::viscosity(fluidState, paramCache, phaseIdx);
            fluidState.setViscosity(phaseIdx,mu);
 
            // compute and set the density
            const Scalar rho = FluidSystem::density(fluidState, paramCache, phaseIdx);
            fluidState.setDensity(phaseIdx, rho);
 
            // compute and set the enthalpy
            const 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(const int phaseIdx) const
    { return fluidState_.saturation(phaseIdx); }
 
    Scalar density(const int phaseIdx) const
    { return fluidState_.density(phaseIdx); }
 
    Scalar pressure(const int phaseIdx) const
    { return fluidState_.pressure(phaseIdx); }
 
    Scalar temperature() const
    { return fluidState_.temperature(/*phaseIdx=*/0); }
 
    Scalar mobility(const int phaseIdx) const
    {
        return mobility_[phaseIdx];
    }
 
    Scalar capillaryPressure() const
    { return fluidState_.capillaryPressure(); }
 
    Scalar porosity() const
    { return solidState_.porosity(); }
 
    const PermeabilityType& permeability() const
    { return permeability_; }
 
protected:
    FluidState fluidState_;
    SolidState solidState_;
 
 
private:
    PermeabilityType permeability_;
    Scalar mobility_[ParentType::numFluidPhases()];
};
 
} // end namespace Dumux
 
#endif