test/porousmediumflow/mpnc/implicit/obstacle/problem.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_OBSTACLEPROBLEM_HH
#define DUMUX_OBSTACLEPROBLEM_HH
 
#include <dune/common/parametertreeparser.hh>
#include <dune/grid/yaspgrid.hh>
 
#include <dumux/discretization/box.hh>
#include <dumux/discretization/cctpfa.hh>
 
#include <dumux/porousmediumflow/mpnc/model.hh>
#include <dumux/porousmediumflow/problem.hh>
 
#include <dumux/material/fluidsystems/h2on2.hh>
#include <dumux/material/fluidstates/compositional.hh>
#include <dumux/material/constraintsolvers/computefromreferencephase.hh>
 
#include "spatialparams.hh"
 
namespace Dumux {
 
template <class TypeTag>
class ObstacleProblem;
 
namespace Properties {
// Create new type tags
namespace TTag {
struct Obstacle { using InheritsFrom = std::tuple<MPNC>; };
struct ObstacleBox { using InheritsFrom = std::tuple<Obstacle, BoxModel>; };
struct ObstacleCC { using InheritsFrom = std::tuple<Obstacle, CCTpfaModel>; };
} // end namespace TTag
 
// Set the grid type
template<class TypeTag>
struct Grid<TypeTag, TTag::Obstacle> { using type = Dune::YaspGrid<2>; };
 
// Set the problem property
template<class TypeTag>
struct Problem<TypeTag, TTag::Obstacle> { using type = ObstacleProblem<TypeTag>; };
 
// Set the spatial parameters
template<class TypeTag>
struct SpatialParams<TypeTag, TTag::Obstacle>
{
    using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>;
    using Scalar = GetPropType<TypeTag, Properties::Scalar>;
    using type = ObstacleSpatialParams<GridGeometry, Scalar>;
};
 
// Set fluid configuration
template<class TypeTag>
struct FluidSystem<TypeTag, TTag::Obstacle>
{
    using type = FluidSystems::H2ON2<GetPropType<TypeTag, Properties::Scalar>,
                                     FluidSystems::H2ON2DefaultPolicy</*fastButSimplifiedRelations=*/true>>;
};
 
// decide which type to use for floating values (double / quad)
template<class TypeTag>
struct Scalar<TypeTag, TTag::Obstacle> { using type = double; };
 
}
 
template <class TypeTag>
class ObstacleProblem
    : public PorousMediumFlowProblem<TypeTag>
{
    using ParentType = PorousMediumFlowProblem<TypeTag>;
    using Scalar = GetPropType<TypeTag, Properties::Scalar>;
    using FluidSystem = GetPropType<TypeTag, Properties::FluidSystem>;
    using BoundaryTypes = GetPropType<TypeTag, Properties::BoundaryTypes>;
    using NumEqVector = GetPropType<TypeTag, Properties::NumEqVector>;
    using PrimaryVariables = GetPropType<TypeTag, Properties::PrimaryVariables>;
    using ElementVolumeVariables = typename GetPropType<TypeTag, Properties::GridVolumeVariables>::LocalView;
    using FVElementGeometry = typename GetPropType<TypeTag, Properties::GridGeometry>::LocalView;
    using SubControlVolume = typename FVElementGeometry::SubControlVolume;
    using SubControlVolumeFace = typename FVElementGeometry::SubControlVolumeFace;
    using GridView = GetPropType<TypeTag, Properties::GridView>;
    using Element = typename GridView::template Codim<0>::Entity;
    using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>;
    using FluidState = GetPropType<TypeTag, Properties::FluidState>;
    using ParameterCache = typename FluidSystem::ParameterCache;
 
    using ModelTraits = GetPropType<TypeTag, Properties::ModelTraits>;
    using Indices = typename ModelTraits::Indices;
 
    enum { dimWorld = GridView::dimensionworld };
    enum { numPhases = ModelTraits::numFluidPhases() };
    enum { numComponents = ModelTraits::numFluidComponents() };
    enum { gasPhaseIdx = FluidSystem::gasPhaseIdx };
    enum { liquidPhaseIdx = FluidSystem::liquidPhaseIdx };
    enum { H2OIdx = FluidSystem::H2OIdx };
    enum { N2Idx = FluidSystem::N2Idx };
    enum { fug0Idx = Indices::fug0Idx };
    enum { s0Idx = Indices::s0Idx };
    enum { p0Idx = Indices::p0Idx };
 
    using GlobalPosition = typename SubControlVolume::GlobalPosition;
    using PhaseVector = Dune::FieldVector<Scalar, numPhases>;
 
public:
    ObstacleProblem(std::shared_ptr<const GridGeometry> gridGeometry)
        : ParentType(gridGeometry)
    {
        temperature_ = 273.15 + 25; // -> 25°C
 
        // initialize the tables of the fluid system
        Scalar Tmin = temperature_ - 1.0;
        Scalar Tmax = temperature_ + 1.0;
        int nT = 3;
 
        Scalar pmin = 1.0e5 * 0.75;
        Scalar pmax = 2.0e5 * 1.25;
        int np = 1000;
 
        FluidSystem::init(Tmin, Tmax, nT, pmin, pmax, np);
        name_ = getParam<std::string>("Problem.Name");
    }
 
    // \{
 
    const std::string name() const
    { return name_; }
 
    Scalar temperature() const
    { return temperature_; }
 
    bool shouldWriteRestartFile() const
    {
        return ParentType::shouldWriteRestartFile();
    }
 
    // \}
 
    // \{
    BoundaryTypes boundaryTypesAtPos(const GlobalPosition &globalPos) const
    {
        BoundaryTypes bcTypes;
        if (onInlet_(globalPos) || onOutlet_(globalPos))
            bcTypes.setAllDirichlet();
        else
            bcTypes.setAllNeumann();
        return bcTypes;
    }
 
    PrimaryVariables dirichletAtPos(const GlobalPosition &globalPos) const
    {
       return initial_(globalPos);
    }
 
    NumEqVector neumannAtPos(const GlobalPosition& globalPos) const
    {
        return NumEqVector(0.0);
    }
 
    // \}
 
    // \{
 
    NumEqVector source(const Element &element,
                       const FVElementGeometry& fvGeometry,
                       const ElementVolumeVariables& elemVolVars,
                       const SubControlVolume &scv) const
    {
       return NumEqVector(0.0);
    }
 
    PrimaryVariables initialAtPos(const GlobalPosition &globalPos) const
    {
        return initial_(globalPos);
    }
 
    // \}
 
private:
    // the internal method for the initial condition
    PrimaryVariables initial_(const GlobalPosition &globalPos) const
    {
        PrimaryVariables values(0.0);
        FluidState fs;
 
        int refPhaseIdx;
        int otherPhaseIdx;
 
        // set the fluid temperatures
        fs.setTemperature(this->temperatureAtPos(globalPos));
 
        if (onInlet_(globalPos))
        {
            // only liquid on inlet
            refPhaseIdx = liquidPhaseIdx;
            otherPhaseIdx = gasPhaseIdx;
 
            // set liquid saturation
            fs.setSaturation(liquidPhaseIdx, 1.0);
 
            // set pressure of the liquid phase
            fs.setPressure(liquidPhaseIdx, 2e5);
 
            // set the liquid composition to pure water
            fs.setMoleFraction(liquidPhaseIdx, N2Idx, 0.0);
            fs.setMoleFraction(liquidPhaseIdx, H2OIdx, 1.0);
        }
        else {
            // elsewhere, only gas
            refPhaseIdx = gasPhaseIdx;
            otherPhaseIdx = liquidPhaseIdx;
 
            // set gas saturation
            fs.setSaturation(gasPhaseIdx, 1.0);
 
            // set pressure of the gas phase
            fs.setPressure(gasPhaseIdx, 1e5);
 
            // set the gas composition to 99% nitrogen and 1% steam
            fs.setMoleFraction(gasPhaseIdx, N2Idx, 0.99);
            fs.setMoleFraction(gasPhaseIdx, H2OIdx, 0.01);
        }
 
        // set the other saturation
        fs.setSaturation(otherPhaseIdx, 1.0 - fs.saturation(refPhaseIdx));
 
        // calulate the capillary pressure
        const auto& matParams = this->spatialParams().materialLawParamsAtPos(globalPos);
        PhaseVector pc;
        using MaterialLaw = typename ParentType::SpatialParams::MaterialLaw;
        using MPAdapter = MPAdapter<MaterialLaw, numPhases>;
 
        const int wPhaseIdx = this->spatialParams().template wettingPhaseAtPos<FluidSystem>(globalPos);
        MPAdapter::capillaryPressures(pc, matParams, fs, wPhaseIdx);
        fs.setPressure(otherPhaseIdx,
                       fs.pressure(refPhaseIdx)
                       + (pc[otherPhaseIdx] - pc[refPhaseIdx]));
 
        // make the fluid state consistent with local thermodynamic
        // equilibrium
        using ComputeFromReferencePhase = ComputeFromReferencePhase<Scalar, FluidSystem>;
 
        ParameterCache paramCache;
        ComputeFromReferencePhase::solve(fs,
                                         paramCache,
                                         refPhaseIdx);
 
        // assign the primary variables
 
        // all N component fugacities
        for (int compIdx = 0; compIdx < numComponents; ++compIdx)
            values[fug0Idx + compIdx] = fs.fugacity(refPhaseIdx, compIdx);
 
        // first M - 1 saturations
        for (int phaseIdx = 0; phaseIdx < numPhases - 1; ++phaseIdx)
            values[s0Idx + phaseIdx] = fs.saturation(phaseIdx);
 
        // first pressure
        values[p0Idx] = fs.pressure(/*phaseIdx=*/0);
        return values;
    }
 
    bool onInlet_(const GlobalPosition &globalPos) const
    {
        Scalar x = globalPos[0];
        Scalar y = globalPos[1];
        return x >= 60 - eps_ && y <= 10 + eps_;
    }
 
    bool onOutlet_(const GlobalPosition &globalPos) const
    {
        Scalar x = globalPos[0];
        Scalar y = globalPos[1];
        return x < eps_ && y <= 10 + eps_;
    }
 
    Scalar temperature_;
    static constexpr Scalar eps_ = 1e-6;
    std::string name_;
};
} // end namespace Dumux
 
#endif