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| 1 | // -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- | ||
| 2 | // vi: set et ts=4 sw=4 sts=4: | ||
| 3 | // | ||
| 4 | // SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder | ||
| 5 | // SPDX-License-Identifier: GPL-3.0-or-later | ||
| 6 | // | ||
| 7 | /*! | ||
| 8 | * \file | ||
| 9 | * | ||
| 10 | * \brief A test problem for the two-phase pore network model. | ||
| 11 | */ | ||
| 12 | #ifndef DUMUX_PNM2P_PROBLEM_HH | ||
| 13 | #define DUMUX_PNM2P_PROBLEM_HH | ||
| 14 | |||
| 15 | #include <dumux/common/boundarytypes.hh> | ||
| 16 | #include <dumux/common/parameters.hh> | ||
| 17 | #include <dumux/porenetwork/2p/model.hh> | ||
| 18 | #include <dumux/porousmediumflow/problem.hh> | ||
| 19 | |||
| 20 | namespace Dumux { | ||
| 21 | |||
| 22 | template <class TypeTag> | ||
| 23 | class DrainageProblem; | ||
| 24 | |||
| 25 | template <class TypeTag> | ||
| 26 | 2 | class DrainageProblem : public PorousMediumFlowProblem<TypeTag> | |
| 27 | { | ||
| 28 | using ParentType = PorousMediumFlowProblem<TypeTag>; | ||
| 29 | using Scalar = GetPropType<TypeTag, Properties::Scalar>; | ||
| 30 | using PrimaryVariables = GetPropType<TypeTag, Properties::PrimaryVariables>; | ||
| 31 | using BoundaryTypes = Dumux::BoundaryTypes<GetPropType<TypeTag, Properties::ModelTraits>::numEq()>; | ||
| 32 | using ElementVolumeVariables = typename GetPropType<TypeTag, Properties::GridVolumeVariables>::LocalView; | ||
| 33 | using FVElementGeometry = typename GetPropType<TypeTag, Properties::GridGeometry>::LocalView; | ||
| 34 | using SubControlVolume = typename FVElementGeometry::SubControlVolume; | ||
| 35 | using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>; | ||
| 36 | using GridView = typename GridGeometry::GridView; | ||
| 37 | using FluidSystem = GetPropType<TypeTag, Properties::FluidSystem>; | ||
| 38 | using GridVariables = GetPropType<TypeTag, Properties::GridVariables>; | ||
| 39 | |||
| 40 | // copy some indices for convenience | ||
| 41 | using Indices = typename GetPropType<TypeTag, Properties::ModelTraits>::Indices; | ||
| 42 | using Labels = GetPropType<TypeTag, Properties::Labels>; | ||
| 43 | enum { | ||
| 44 | pwIdx = Indices::pressureIdx, | ||
| 45 | snIdx = Indices::saturationIdx, | ||
| 46 | nPhaseIdx = FluidSystem::phase1Idx, | ||
| 47 | |||
| 48 | #if !ISOTHERMAL | ||
| 49 | temperatureIdx = Indices::temperatureIdx, | ||
| 50 | energyEqIdx = Indices::energyEqIdx, | ||
| 51 | #endif | ||
| 52 | }; | ||
| 53 | |||
| 54 | using Element = typename GridView::template Codim<0>::Entity; | ||
| 55 | using Vertex = typename GridView::template Codim<GridView::dimension>::Entity; | ||
| 56 | |||
| 57 | public: | ||
| 58 | template<class SpatialParams> | ||
| 59 | 2 | DrainageProblem(std::shared_ptr<const GridGeometry> gridGeometry, std::shared_ptr<SpatialParams> spatialParams) | |
| 60 |
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8 | : ParentType(gridGeometry, spatialParams) |
| 61 | { | ||
| 62 |
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2 | vtpOutputFrequency_ = getParam<int>("Problem.VtpOutputFrequency"); |
| 63 |
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2 | useFixedPressureAndSaturationBoundary_ = getParam<bool>("Problem.UseFixedPressureAndSaturationBoundary", false); |
| 64 |
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2 | pc_ = getParam<Scalar>("Problem.CapillaryPressure"); |
| 65 | 2 | } | |
| 66 | |||
| 67 | /*! | ||
| 68 | * \name Simulation steering | ||
| 69 | */ | ||
| 70 | // \{ | ||
| 71 | |||
| 72 | /*! | ||
| 73 | * \name Problem parameters | ||
| 74 | */ | ||
| 75 | // \{ | ||
| 76 | |||
| 77 | ✗ | bool shouldWriteOutput(const int timeStepIndex, const GridVariables& gridVariables) const | |
| 78 | { | ||
| 79 |
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226 | if (vtpOutputFrequency_ < 0) |
| 80 | ✗ | return true; | |
| 81 | |||
| 82 |
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133 | if (vtpOutputFrequency_ == 0) |
| 83 | ✗ | return (timeStepIndex == 0 || gridVariables.gridFluxVarsCache().invasionState().hasChanged()); | |
| 84 | else | ||
| 85 |
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133 | return (timeStepIndex % vtpOutputFrequency_ == 0 || gridVariables.gridFluxVarsCache().invasionState().hasChanged()); |
| 86 | } | ||
| 87 | |||
| 88 | /*! | ||
| 89 | * \name Boundary conditions | ||
| 90 | */ | ||
| 91 | // \{ | ||
| 92 | //! Specifies which kind of boundary condition should be used for | ||
| 93 | //! which equation for a finite volume on the boundary. | ||
| 94 | 12474 | BoundaryTypes boundaryTypes(const Element& element, const SubControlVolume& scv) const | |
| 95 | { | ||
| 96 | 12474 | BoundaryTypes bcTypes; | |
| 97 | |||
| 98 | // If a global phase pressure difference (pn,inlet - pw,outlet) with fixed saturations is specified, use a Dirichlet BC here | ||
| 99 |
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12474 | if (useFixedPressureAndSaturationBoundary_ && isInletPore_(scv)) |
| 100 | bcTypes.setAllDirichlet(); | ||
| 101 | 24948 | else if (isOutletPore_(scv)) | |
| 102 | bcTypes.setAllDirichlet(); | ||
| 103 | |||
| 104 | #if !ISOTHERMAL | ||
| 105 | 14784 | bcTypes.setDirichlet(temperatureIdx); | |
| 106 | #endif | ||
| 107 | 12474 | return bcTypes; | |
| 108 | } | ||
| 109 | |||
| 110 | |||
| 111 | //! Evaluate the boundary conditions for a Dirichlet control volume. | ||
| 112 | 9207 | PrimaryVariables dirichlet(const Element& element, | |
| 113 | const SubControlVolume& scv) const | ||
| 114 | { | ||
| 115 | 9207 | PrimaryVariables values(0.0); | |
| 116 |
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9207 | values[pwIdx] = 1e5; |
| 117 |
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9207 | values[snIdx] = 0.0; |
| 118 | |||
| 119 | // If a global phase pressure difference (pn,inlet - pw,outlet) is specified and the saturation shall also be fixed, apply: | ||
| 120 | // pw,inlet = pw,outlet = 1e5; pn,outlet = pw,outlet + pc(S=0) = pw,outlet; pn,inlet = pw,inlet + pc_ | ||
| 121 |
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9207 | if (useFixedPressureAndSaturationBoundary_ && isInletPore_(scv)) |
| 122 | ✗ | values[snIdx] = 1.0 - this->spatialParams().fluidMatrixInteraction(element, scv, int()/*dummyElemsol*/).sw(pc_); | |
| 123 | |||
| 124 | #if !ISOTHERMAL | ||
| 125 | 14784 | if (isInletPore_(scv)) | |
| 126 | 9504 | values[temperatureIdx] = 273.15 + 15; | |
| 127 | else | ||
| 128 | 5280 | values[temperatureIdx] = 273.15 + 10; | |
| 129 | #endif | ||
| 130 | 9207 | return values; | |
| 131 | } | ||
| 132 | |||
| 133 | |||
| 134 | // \} | ||
| 135 | |||
| 136 | /*! | ||
| 137 | * \name Volume terms | ||
| 138 | */ | ||
| 139 | // \{ | ||
| 140 | |||
| 141 | //! Evaluate the source term for all phases within a given sub-control-volume. | ||
| 142 | 497310 | PrimaryVariables source(const Element& element, | |
| 143 | const FVElementGeometry& fvGeometry, | ||
| 144 | const ElementVolumeVariables& elemVolVars, | ||
| 145 | const SubControlVolume& scv) const | ||
| 146 | { | ||
| 147 | 1510014 | PrimaryVariables values(0.0); | |
| 148 | |||
| 149 | // If we do not want to use global phase pressure difference with fixed saturations and pressures, | ||
| 150 | // we can instead only fix the non-wetting phase pressure and allow the wetting phase saturation to changle freely | ||
| 151 | // by applying a Nitsche-type boundary condition which tries to minimize the difference between the present pn and the given value | ||
| 152 |
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1510014 | if (!useFixedPressureAndSaturationBoundary_ && isInletPore_(scv)) |
| 153 | 198396 | values[snIdx] = (elemVolVars[scv].pressure(nPhaseIdx) - (1e5 + pc_)) * 1e8; | |
| 154 | |||
| 155 | 497310 | return values; | |
| 156 | } | ||
| 157 | // \} | ||
| 158 | |||
| 159 | //! Evaluate the initial value for a control volume. | ||
| 160 | 180 | PrimaryVariables initial(const Vertex& vertex) const | |
| 161 | { | ||
| 162 | 180 | PrimaryVariables values(0.0); | |
| 163 | 180 | values[pwIdx] = 1e5; | |
| 164 | |||
| 165 | // get global index of pore | ||
| 166 | 540 | const auto dofIdxGlobal = this->gridGeometry().vertexMapper().index(vertex); | |
| 167 | 360 | if (isInletPore_(dofIdxGlobal)) | |
| 168 | 20 | values[snIdx] = 0.5; | |
| 169 | else | ||
| 170 | 340 | values[snIdx] = 0.0; | |
| 171 | |||
| 172 | #if !ISOTHERMAL | ||
| 173 | 180 | values[temperatureIdx] = 273.15 + 10; | |
| 174 | #endif | ||
| 175 | 180 | return values; | |
| 176 | } | ||
| 177 | |||
| 178 | //! Evaluate the initial invasion state of a pore throat | ||
| 179 | ✗ | bool initialInvasionState(const Element& element) const | |
| 180 | ✗ | { return false; } | |
| 181 | |||
| 182 | // \} | ||
| 183 | |||
| 184 | private: | ||
| 185 | |||
| 186 | bool isInletPore_(const SubControlVolume& scv) const | ||
| 187 | { | ||
| 188 | 3034812 | return isInletPore_(scv.dofIndex()); | |
| 189 | } | ||
| 190 | |||
| 191 | bool isInletPore_(const std::size_t dofIdxGlobal) const | ||
| 192 | { | ||
| 193 |
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4552758 | return this->gridGeometry().poreLabel(dofIdxGlobal) == Labels::inlet; |
| 194 | } | ||
| 195 | |||
| 196 | bool isOutletPore_(const SubControlVolume& scv) const | ||
| 197 | { | ||
| 198 |
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37422 | return this->gridGeometry().poreLabel(scv.dofIndex()) == Labels::outlet; |
| 199 | } | ||
| 200 | |||
| 201 | int vtpOutputFrequency_; | ||
| 202 | bool useFixedPressureAndSaturationBoundary_; | ||
| 203 | Scalar pc_; | ||
| 204 | }; | ||
| 205 | } //end namespace Dumux | ||
| 206 | |||
| 207 | #endif | ||
| 208 |