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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 | * \ingroup RichardsTests | ||
| 10 | * \brief Test for the extended richards problem: | ||
| 11 | * The simulation domain is a tube a constant evaporation rate is set at the top and the soil gradually dries out. | ||
| 12 | */ | ||
| 13 | |||
| 14 | #ifndef DUMUX_RICHARDS_EVAPORATION_PROBLEM_HH | ||
| 15 | #define DUMUX_RICHARDS_EVAPORATION_PROBLEM_HH | ||
| 16 | |||
| 17 | #include <cmath> | ||
| 18 | |||
| 19 | #include <dumux/common/properties.hh> | ||
| 20 | #include <dumux/common/parameters.hh> | ||
| 21 | #include <dumux/common/boundarytypes.hh> | ||
| 22 | #include <dumux/common/numeqvector.hh> | ||
| 23 | |||
| 24 | #include <dumux/porousmediumflow/problem.hh> | ||
| 25 | #include <dumux/material/components/h2o.hh> | ||
| 26 | |||
| 27 | namespace Dumux { | ||
| 28 | |||
| 29 | /*! | ||
| 30 | * \ingroup RichardsTests | ||
| 31 | * | ||
| 32 | * \brief Test for the RichardsModel in combination with the NI model for evaporation | ||
| 33 | * The result of the analytical solution is written into the vtu files. | ||
| 34 | * This problem uses the \ref RichardsModel and \ref NIModel model. | ||
| 35 | */ | ||
| 36 | template <class TypeTag> | ||
| 37 | class RichardsNIEvaporationProblem : public PorousMediumFlowProblem<TypeTag> | ||
| 38 | { | ||
| 39 | using ParentType = PorousMediumFlowProblem<TypeTag>; | ||
| 40 | |||
| 41 | using GridView = typename GetPropType<TypeTag, Properties::GridGeometry>::GridView; | ||
| 42 | using Scalar = GetPropType<TypeTag, Properties::Scalar>; | ||
| 43 | using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>; | ||
| 44 | using FVElementGeometry = typename GridGeometry::LocalView; | ||
| 45 | using SubControlVolumeFace = typename GridGeometry::SubControlVolumeFace; | ||
| 46 | using PrimaryVariables = GetPropType<TypeTag, Properties::PrimaryVariables>; | ||
| 47 | using NumEqVector = Dumux::NumEqVector<PrimaryVariables>; | ||
| 48 | using FluidSystem = GetPropType<TypeTag, Properties::FluidSystem>; | ||
| 49 | using BoundaryTypes = Dumux::BoundaryTypes<GetPropType<TypeTag, Properties::ModelTraits>::numEq()>; | ||
| 50 | using ThermalConductivityModel = GetPropType<TypeTag, Properties::ThermalConductivityModel>; | ||
| 51 | using GridVariables = GetPropType<TypeTag, Properties::GridVariables>; | ||
| 52 | using ElementVolumeVariables = typename GridVariables::GridVolumeVariables::LocalView; | ||
| 53 | using ElementFluxVariablesCache = typename GridVariables::GridFluxVariablesCache::LocalView; | ||
| 54 | using VolumeVariables = typename GridVariables::GridVolumeVariables::VolumeVariables; | ||
| 55 | using SolutionVector = GetPropType<TypeTag, Properties::SolutionVector>; | ||
| 56 | using IapwsH2O = Components::H2O<Scalar>; | ||
| 57 | |||
| 58 | // copy some indices for convenience | ||
| 59 | using Indices = typename GetPropType<TypeTag, Properties::ModelTraits>::Indices; | ||
| 60 | enum { dimWorld = GridView::dimensionworld }; | ||
| 61 | |||
| 62 | enum { | ||
| 63 | pressureIdx = Indices::pressureIdx, | ||
| 64 | conti0EqIdx = Indices::conti0EqIdx, | ||
| 65 | temperatureIdx = Indices::temperatureIdx, | ||
| 66 | energyEqIdx = Indices::energyEqIdx | ||
| 67 | }; | ||
| 68 | |||
| 69 | using Element = typename GridView::template Codim<0>::Entity; | ||
| 70 | using GlobalPosition = typename SubControlVolumeFace::GlobalPosition; | ||
| 71 | |||
| 72 | public: | ||
| 73 | 2 | RichardsNIEvaporationProblem(std::shared_ptr<const GridGeometry> gridGeometry) | |
| 74 |
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6 | : ParentType(gridGeometry) |
| 75 | { | ||
| 76 | // initialize fluid system | ||
| 77 |
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2 | FluidSystem::init(); |
| 78 | |||
| 79 |
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2 | name_ = getParam<std::string>("Problem.Name"); |
| 80 | 2 | pressure_ = 9.9e4; | |
| 81 | 2 | temperatureInitial_ = 291; | |
| 82 | 2 | } | |
| 83 | |||
| 84 | /*! | ||
| 85 | * \name Problem parameters | ||
| 86 | */ | ||
| 87 | // \{ | ||
| 88 | |||
| 89 | /*! | ||
| 90 | * \brief The problem name. | ||
| 91 | * | ||
| 92 | * This is used as a prefix for files generated by the simulation. | ||
| 93 | */ | ||
| 94 | const std::string& name() const | ||
| 95 | { | ||
| 96 | return name_; | ||
| 97 | } | ||
| 98 | |||
| 99 | // \} | ||
| 100 | |||
| 101 | /*! | ||
| 102 | * \name Boundary conditions | ||
| 103 | */ | ||
| 104 | // \{ | ||
| 105 | |||
| 106 | /*! | ||
| 107 | * \brief Specifies which kind of boundary condition should be | ||
| 108 | * used for which equation on a given boundary segment. | ||
| 109 | * | ||
| 110 | * \param globalPos The position for which the boundary type is set | ||
| 111 | */ | ||
| 112 | ✗ | BoundaryTypes boundaryTypesAtPos(const GlobalPosition &globalPos) const | |
| 113 | { | ||
| 114 | ✗ | BoundaryTypes values; | |
| 115 | ✗ | if(globalPos[1] < eps_) | |
| 116 | { | ||
| 117 | values.setAllDirichlet(); | ||
| 118 | } | ||
| 119 | else | ||
| 120 | { | ||
| 121 | values.setAllNeumann(); | ||
| 122 | } | ||
| 123 | ✗ | return values; | |
| 124 | } | ||
| 125 | |||
| 126 | /*! | ||
| 127 | * \brief Evaluates the boundary conditions for a Dirichlet boundary segment. | ||
| 128 | * | ||
| 129 | * \param globalPos The position for which the bc type should be evaluated | ||
| 130 | * | ||
| 131 | * For this method, the \a values parameter stores primary variables. | ||
| 132 | */ | ||
| 133 | ✗ | PrimaryVariables dirichletAtPos(const GlobalPosition &globalPos) const | |
| 134 | { | ||
| 135 | 4230 | return initial_(globalPos); | |
| 136 | } | ||
| 137 | |||
| 138 | /*! | ||
| 139 | * \brief Evaluates the boundary conditions for a Neumann boundary segment. | ||
| 140 | * | ||
| 141 | * \param element The finite element | ||
| 142 | * \param fvGeometry The finite-volume geometry in the box scheme | ||
| 143 | * \param elemVolVars The element volume variables | ||
| 144 | * \param elemFluxVarsCache Flux variables caches for all faces in stencil | ||
| 145 | * \param scvf The subcontrolvolume face | ||
| 146 | * Negative values mean influx. | ||
| 147 | */ | ||
| 148 | 148773 | NumEqVector neumann(const Element &element, | |
| 149 | const FVElementGeometry& fvGeometry, | ||
| 150 | const ElementVolumeVariables& elemVolVars, | ||
| 151 | const ElementFluxVariablesCache& elemFluxVarsCache, | ||
| 152 | const SubControlVolumeFace& scvf) const | ||
| 153 | { | ||
| 154 | 148773 | NumEqVector values(0.0); | |
| 155 | 148773 | const auto globalPos = scvf.ipGlobal(); | |
| 156 |
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297546 | const auto& volVars = elemVolVars[scvf.insideScvIdx()]; |
| 157 | 148773 | Scalar boundaryLayerThickness = 0.00016; | |
| 158 | |||
| 159 |
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743865 | if(globalPos[1] > this->gridGeometry().bBoxMax()[1] - eps_) |
| 160 | { | ||
| 161 | 11595 | Scalar massFracInside = volVars.massFraction(FluidSystem::phase1Idx, FluidSystem::comp0Idx); | |
| 162 | 11595 | Scalar massFracRef = 0.0; | |
| 163 | 11595 | Scalar evaporationRate = volVars.effectiveDiffusionCoefficient(FluidSystem::phase1Idx, FluidSystem::comp1Idx, FluidSystem::comp0Idx) | |
| 164 | 11595 | * (massFracInside - massFracRef) | |
| 165 | 11595 | / boundaryLayerThickness | |
| 166 | 11595 | * volVars.density(FluidSystem::phase1Idx); | |
| 167 | 11595 | values[conti0EqIdx] = evaporationRate; | |
| 168 | 23190 | values[energyEqIdx] = FluidSystem::enthalpy( volVars.fluidState(), FluidSystem::gasPhaseIdx) * values[conti0EqIdx]; | |
| 169 | 11595 | values[energyEqIdx] += FluidSystem::thermalConductivity(volVars.fluidState(), FluidSystem::gasPhaseIdx) | |
| 170 | 23190 | * (volVars.temperature() - temperatureInitial_)/boundaryLayerThickness; | |
| 171 | } | ||
| 172 | 148773 | return values; | |
| 173 | } | ||
| 174 | |||
| 175 | // \} | ||
| 176 | |||
| 177 | /*! | ||
| 178 | * \name Volume terms | ||
| 179 | */ | ||
| 180 | // \{ | ||
| 181 | |||
| 182 | |||
| 183 | /*! | ||
| 184 | * \brief Returns the reference pressure [Pa] of the nonwetting | ||
| 185 | * fluid phase within a finite volume. | ||
| 186 | * | ||
| 187 | * This problem assumes a constant reference pressure of 1 bar. | ||
| 188 | */ | ||
| 189 | ✗ | Scalar nonwettingReferencePressure() const | |
| 190 | ✗ | { return 1e5; }; | |
| 191 | |||
| 192 | /*! | ||
| 193 | * \brief Evaluates the initial value for a control volume. | ||
| 194 | * | ||
| 195 | * \param globalPos The position for which the initial condition should be evaluated | ||
| 196 | * | ||
| 197 | * For this method, the \a values parameter stores primary | ||
| 198 | * variables. | ||
| 199 | */ | ||
| 200 | ✗ | PrimaryVariables initialAtPos(const GlobalPosition &globalPos) const | |
| 201 | { | ||
| 202 | 672 | return initial_(globalPos); | |
| 203 | } | ||
| 204 | |||
| 205 | // \} | ||
| 206 | |||
| 207 | private: | ||
| 208 | ✗ | PrimaryVariables initial_(const GlobalPosition &globalPos) const | |
| 209 | { | ||
| 210 | 2451 | PrimaryVariables priVars(0.0); | |
| 211 | 2451 | priVars.setState(Indices::bothPhases); | |
| 212 | 2451 | priVars[pressureIdx] = pressure_; // initial condition for the pressure | |
| 213 | 4902 | priVars[temperatureIdx] = temperatureInitial_; | |
| 214 | ✗ | return priVars; | |
| 215 | } | ||
| 216 | |||
| 217 | Scalar temperatureInitial_; | ||
| 218 | Scalar pressure_; | ||
| 219 | static constexpr Scalar eps_ = 1e-6; | ||
| 220 | std::string name_; | ||
| 221 | }; | ||
| 222 | |||
| 223 | } // end namespace Dumux | ||
| 224 | |||
| 225 | #endif | ||
| 226 |