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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 RANSNCTests | ||
| 10 | * \brief Flat plate test for the multi-component staggered grid Reynolds-averaged Navier-Stokes model. | ||
| 11 | */ | ||
| 12 | #ifndef DUMUX_RANS_NC_TEST_PROBLEM_HH | ||
| 13 | #define DUMUX_RANS_NC_TEST_PROBLEM_HH | ||
| 14 | |||
| 15 | #include <dumux/common/properties.hh> | ||
| 16 | #include <dumux/common/parameters.hh> | ||
| 17 | #include <dumux/common/timeloop.hh> | ||
| 18 | #include <dumux/common/numeqvector.hh> | ||
| 19 | |||
| 20 | #include <dumux/freeflow/rans/boundarytypes.hh> | ||
| 21 | #include <dumux/freeflow/turbulencemodel.hh> | ||
| 22 | #include <dumux/freeflow/turbulenceproperties.hh> | ||
| 23 | #include <dumux/freeflow/rans/zeroeq/problem.hh> | ||
| 24 | #include <dumux/freeflow/rans/oneeq/problem.hh> | ||
| 25 | #include <dumux/freeflow/rans/twoeq/komega/problem.hh> | ||
| 26 | #include <dumux/freeflow/rans/twoeq/sst/problem.hh> | ||
| 27 | #include <dumux/freeflow/rans/twoeq/lowrekepsilon/problem.hh> | ||
| 28 | #include <dumux/freeflow/rans/twoeq/kepsilon/problem.hh> | ||
| 29 | |||
| 30 | namespace Dumux { | ||
| 31 | |||
| 32 | /*! | ||
| 33 | * \ingroup RANSNCTests | ||
| 34 | * \brief Test problem for the one-phase model. | ||
| 35 | * | ||
| 36 | * Dry air is entering from the left side and flows above a 1-D a flat plate. | ||
| 37 | * In the middle of the inlet, water vapor is injected, which spreads by turbulent diffusion. | ||
| 38 | * For the non-isothermal model the bottom has a constant temperature | ||
| 39 | * which is higher than the initial and inlet temperature. | ||
| 40 | */ | ||
| 41 | template <class TypeTag> | ||
| 42 | class FlatPlateNCTestProblem : public RANSProblem<TypeTag> | ||
| 43 | { | ||
| 44 | using ParentType = RANSProblem<TypeTag>; | ||
| 45 | |||
| 46 | using FluidSystem = GetPropType<TypeTag, Properties::FluidSystem>; | ||
| 47 | using FluidState = GetPropType<TypeTag, Properties::FluidState>; | ||
| 48 | using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>; | ||
| 49 | using PrimaryVariables = GetPropType<TypeTag, Properties::PrimaryVariables>; | ||
| 50 | using NumEqVector = Dumux::NumEqVector<PrimaryVariables>; | ||
| 51 | using Scalar = GetPropType<TypeTag, Properties::Scalar>; | ||
| 52 | |||
| 53 | static constexpr auto dimWorld = GridGeometry::GridView::dimensionworld; | ||
| 54 | using ModelTraits = GetPropType<TypeTag, Properties::ModelTraits>; | ||
| 55 | using Indices = typename GetPropType<TypeTag, Properties::ModelTraits>::Indices; | ||
| 56 | using BoundaryTypes = Dumux::RANSBoundaryTypes<ModelTraits, ModelTraits::numEq()>; | ||
| 57 | using Element = typename GridGeometry::GridView::template Codim<0>::Entity; | ||
| 58 | using GlobalPosition = typename Element::Geometry::GlobalCoordinate; | ||
| 59 | using FVElementGeometry = typename GetPropType<TypeTag, Properties::GridGeometry>::LocalView; | ||
| 60 | using SubControlVolume = typename FVElementGeometry::SubControlVolume; | ||
| 61 | using SubControlVolumeFace = typename FVElementGeometry::SubControlVolumeFace; | ||
| 62 | |||
| 63 | using TimeLoopPtr = std::shared_ptr<CheckPointTimeLoop<Scalar>>; | ||
| 64 | |||
| 65 | static constexpr auto transportEqIdx = Indices::conti0EqIdx + 1; | ||
| 66 | static constexpr auto transportCompIdx = Indices::conti0EqIdx + 1; | ||
| 67 | |||
| 68 | public: | ||
| 69 | 14 | FlatPlateNCTestProblem(std::shared_ptr<const GridGeometry> gridGeometry) | |
| 70 |
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42 | : ParentType(gridGeometry), eps_(1e-6) |
| 71 | { | ||
| 72 |
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14 | inletVelocity_ = getParam<Scalar>("Problem.InletVelocity", 0.1); |
| 73 |
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14 | inletTemperature_ = getParam<Scalar>("Problem.InletTemperature", 283.15); |
| 74 |
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14 | wallTemperature_ = getParam<Scalar>("Problem.WallTemperature", 313.15); |
| 75 |
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14 | inletMoleFraction_ = getParam<Scalar>("Problem.InletMoleFraction", 1e-3); |
| 76 | |||
| 77 |
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14 | FluidSystem::init(); |
| 78 | Dumux::TurbulenceProperties<Scalar, dimWorld, true> turbulenceProperties; | ||
| 79 | 14 | FluidState fluidState; | |
| 80 | 14 | const auto phaseIdx = 0; | |
| 81 |
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14 | fluidState.setPressure(phaseIdx, 1e5); |
| 82 |
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28 | fluidState.setTemperature(this->spatialParams().temperatureAtPos({})); |
| 83 |
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14 | fluidState.setMassFraction(phaseIdx, phaseIdx, 1.0); |
| 84 |
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14 | Scalar density = FluidSystem::density(fluidState, phaseIdx); |
| 85 |
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14 | Scalar kinematicViscosity = FluidSystem::viscosity(fluidState, phaseIdx) / density; |
| 86 |
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84 | Scalar diameter = this->gridGeometry().bBoxMax()[1] - this->gridGeometry().bBoxMin()[1]; |
| 87 |
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14 | viscosityTilde_ = 1e-3 * turbulenceProperties.viscosityTilde(inletVelocity_, diameter, kinematicViscosity); |
| 88 |
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14 | turbulentKineticEnergy_ = turbulenceProperties.turbulentKineticEnergy(inletVelocity_, diameter, kinematicViscosity); |
| 89 | 14 | if (ModelTraits::turbulenceModel() == TurbulenceModel::komega || ModelTraits::turbulenceModel() == TurbulenceModel::sst) | |
| 90 |
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4 | dissipation_ = turbulenceProperties.dissipationRate(inletVelocity_, diameter, kinematicViscosity); |
| 91 | else | ||
| 92 |
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10 | dissipation_ = turbulenceProperties.dissipation(inletVelocity_, diameter, kinematicViscosity); |
| 93 |
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14 | turbulenceModelName_ = turbulenceModelToString(ModelTraits::turbulenceModel()); |
| 94 |
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28 | std::cout << "Using the "<< turbulenceModelName_ << " Turbulence Model. \n"; |
| 95 |
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14 | std::cout << std::endl; |
| 96 | 14 | } | |
| 97 | |||
| 98 | /*! | ||
| 99 | * \name Boundary conditions | ||
| 100 | */ | ||
| 101 | // \{ | ||
| 102 | |||
| 103 | /*! | ||
| 104 | * \brief Specifies which kind of boundary condition should be | ||
| 105 | * used for which equation on a given boundary control volume. | ||
| 106 | * | ||
| 107 | * \param globalPos The position of the center of the finite volume | ||
| 108 | */ | ||
| 109 | 169636110 | BoundaryTypes boundaryTypesAtPos(const GlobalPosition &globalPos) const | |
| 110 | { | ||
| 111 | 169636110 | BoundaryTypes values; | |
| 112 | |||
| 113 | // turbulence model-specific boundary types | ||
| 114 | 179157519 | setBcTypes_(values, globalPos); | |
| 115 | |||
| 116 | 339272220 | if(isInlet_(globalPos)) | |
| 117 | { | ||
| 118 | 10887338 | values.setDirichlet(Indices::velocityXIdx); | |
| 119 | 10887338 | values.setDirichlet(Indices::velocityYIdx); | |
| 120 | 10887338 | values.setDirichlet(transportCompIdx); | |
| 121 | #if NONISOTHERMAL | ||
| 122 | 5944118 | values.setDirichlet(Indices::temperatureIdx); | |
| 123 | #endif | ||
| 124 | } | ||
| 125 | 317497544 | else if(isOutlet_(globalPos)) | |
| 126 | { | ||
| 127 | 13668887 | values.setDirichlet(Indices::pressureIdx); | |
| 128 | 13668887 | values.setOutflow(transportEqIdx); | |
| 129 | #if NONISOTHERMAL | ||
| 130 | 7276963 | values.setOutflow(Indices::energyEqIdx); | |
| 131 | #endif | ||
| 132 | } | ||
| 133 | 290159770 | else if(isLowerWall_(globalPos)) | |
| 134 | { | ||
| 135 | 5824854 | values.setWall(); | |
| 136 | 5824854 | values.setNeumann(transportEqIdx); | |
| 137 | #if NONISOTHERMAL | ||
| 138 | 3189709 | values.setDirichlet(Indices::temperatureIdx); | |
| 139 | #endif | ||
| 140 | } | ||
| 141 | else | ||
| 142 | values.setAllSymmetry(); | ||
| 143 | |||
| 144 | 169636110 | return values; | |
| 145 | } | ||
| 146 | |||
| 147 | /*! | ||
| 148 | * \brief Returns whether a fixed Dirichlet value shall be used inside a given cell. | ||
| 149 | * | ||
| 150 | * \param element The finite element | ||
| 151 | * \param fvGeometry The finite-volume geometry | ||
| 152 | * \param scv The sub control volume | ||
| 153 | * \param pvIdx The primary variable index in the solution vector | ||
| 154 | */ | ||
| 155 | template<class Element, class FVElementGeometry, class SubControlVolume> | ||
| 156 | ✗ | bool isDirichletCell(const Element& element, | |
| 157 | const FVElementGeometry& fvGeometry, | ||
| 158 | const SubControlVolume& scv, | ||
| 159 | int pvIdx) const | ||
| 160 | 35230960 | { return isDirichletCell_(element, fvGeometry, scv, pvIdx); } | |
| 161 | |||
| 162 | /*! | ||
| 163 | * \brief Evaluate the boundary conditions for dirichlet values at the given boundary. | ||
| 164 | * | ||
| 165 | * \param element The finite element | ||
| 166 | * \param scvf the sub control volume face | ||
| 167 | * \note used for cell-centered discretization schemes | ||
| 168 | */ | ||
| 169 | 7465220 | PrimaryVariables dirichlet(const Element& element, const SubControlVolumeFace& scvf) const | |
| 170 | { | ||
| 171 | 7465220 | const auto globalPos = scvf.ipGlobal(); | |
| 172 | 14930440 | PrimaryVariables values(initialAtPos(globalPos)); | |
| 173 | |||
| 174 | if (isInlet_(globalPos) | ||
| 175 |
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21054240 | && globalPos[1] > 0.4 * this->gridGeometry().bBoxMax()[1] |
| 176 |
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2598015 | && globalPos[1] < 0.6 * this->gridGeometry().bBoxMax()[1]) |
| 177 | { | ||
| 178 | 364933 | values[transportCompIdx] = (time() > 10.0) ? inletMoleFraction_ : 0.0; | |
| 179 | } | ||
| 180 | |||
| 181 | #if NONISOTHERMAL | ||
| 182 | 3609636 | values[Indices::temperatureIdx] = (isLowerWall_(globalPos) && time() > 10.0) ? wallTemperature_ : inletTemperature_; | |
| 183 | #endif | ||
| 184 | |||
| 185 | 7465220 | return values; | |
| 186 | } | ||
| 187 | |||
| 188 | /*! | ||
| 189 | * \brief Evaluate the boundary conditions for fixed values at cell centers | ||
| 190 | * | ||
| 191 | * \param element The finite element | ||
| 192 | * \param scv the sub control volume | ||
| 193 | * \note used for cell-centered discretization schemes | ||
| 194 | */ | ||
| 195 | ✗ | PrimaryVariables dirichlet([[maybe_unused]] const Element& element, const SubControlVolume& scv) const | |
| 196 | { | ||
| 197 | if constexpr (ModelTraits::turbulenceModel() == TurbulenceModel::kepsilon | ||
| 198 | || ModelTraits::turbulenceModel() == TurbulenceModel::komega | ||
| 199 | || ModelTraits::turbulenceModel() == TurbulenceModel::sst) | ||
| 200 | 2753116 | return dirichletTurbulentTwoEq_(element, scv); | |
| 201 | else | ||
| 202 | { | ||
| 203 | ✗ | const auto globalPos = scv.center(); | |
| 204 | ✗ | PrimaryVariables values(initialAtPos(globalPos)); | |
| 205 | ✗ | return values; | |
| 206 | } | ||
| 207 | } | ||
| 208 | |||
| 209 | /*! | ||
| 210 | * \brief Evaluates the initial value for a given position. | ||
| 211 | * | ||
| 212 | * \param globalPos The global position | ||
| 213 | */ | ||
| 214 | PrimaryVariables initialAtPos(const GlobalPosition &globalPos) const | ||
| 215 | { | ||
| 216 | 47486404 | PrimaryVariables values(0.0); | |
| 217 |
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50153112 | values[Indices::pressureIdx] = 1.0e+5; |
| 218 |
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50153112 | values[transportCompIdx] = 0.0; |
| 219 | #if NONISOTHERMAL | ||
| 220 |
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23896468 | values[Indices::temperatureIdx] = inletTemperature_; |
| 221 | #endif | ||
| 222 | // block velocity profile | ||
| 223 |
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50153112 | values[Indices::velocityXIdx] = 0.0; |
| 224 | 100479040 | if (!isLowerWall_(globalPos)) | |
| 225 | 88375164 | values[Indices::velocityXIdx] = inletVelocity_; | |
| 226 |
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45586586 | values[Indices::velocityYIdx] = 0.0; |
| 227 | |||
| 228 | // turbulence model-specific initial conditions | ||
| 229 | 3724616 | setInitialAtPos_(values, globalPos); | |
| 230 | return values; | ||
| 231 | } | ||
| 232 | |||
| 233 | // \} | ||
| 234 | |||
| 235 | void setTimeLoop(TimeLoopPtr timeLoop) | ||
| 236 |
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14 | { timeLoop_ = timeLoop; } |
| 237 | |||
| 238 | Scalar time() const | ||
| 239 |
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4049679 | { return timeLoop_->time(); } |
| 240 | |||
| 241 | private: | ||
| 242 | ✗ | bool isInlet_(const GlobalPosition& globalPos) const | |
| 243 |
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354202660 | { return globalPos[0] < eps_; } |
| 244 | |||
| 245 | bool isOutlet_(const GlobalPosition& globalPos) const | ||
| 246 |
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1296663419 | { return globalPos[0] > this->gridGeometry().bBoxMax()[0] - eps_; } |
| 247 | |||
| 248 | ✗ | bool isLowerWall_(const GlobalPosition& globalPos) const | |
| 249 |
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397685266 | { return globalPos[1] < eps_; } |
| 250 | |||
| 251 | //! Initial conditions for the komega, kepsilon and lowrekepsilon turbulence models | ||
| 252 | ✗ | void setInitialAtPos_([[maybe_unused]] PrimaryVariables& values, | |
| 253 | [[maybe_unused]] const GlobalPosition &globalPos) const | ||
| 254 | { | ||
| 255 | if constexpr (numTurbulenceEq(ModelTraits::turbulenceModel()) == 0) // zero equation models | ||
| 256 | ✗ | return; | |
| 257 | else if constexpr (numTurbulenceEq(ModelTraits::turbulenceModel()) == 1) // one equation models | ||
| 258 | { | ||
| 259 |
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6534138 | values[Indices::viscosityTildeIdx] = viscosityTilde_; |
| 260 |
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13068276 | if (isLowerWall_(globalPos)) |
| 261 | 579252 | values[Indices::viscosityTildeIdx] = 0.0; | |
| 262 | } | ||
| 263 | else // two equation models | ||
| 264 | { | ||
| 265 | static_assert(numTurbulenceEq(ModelTraits::turbulenceModel()) == 2, "Only reached by 2eq models"); | ||
| 266 |
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38360832 | values[Indices::turbulentKineticEnergyIdx] = turbulentKineticEnergy_; |
| 267 |
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38360832 | values[Indices::dissipationIdx] = dissipation_; |
| 268 |
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76721664 | if (isLowerWall_(globalPos)) |
| 269 | { | ||
| 270 | 1769364 | values[Indices::turbulentKineticEnergyIdx] = 0.0; | |
| 271 | 3538728 | values[Indices::dissipationIdx] = 0.0; | |
| 272 | } | ||
| 273 | } | ||
| 274 | } | ||
| 275 | |||
| 276 | //! Boundary condition types for the one-eq turbulence model | ||
| 277 | 158118444 | void setBcTypes_([[maybe_unused]] BoundaryTypes& values, | |
| 278 | [[maybe_unused]] const GlobalPosition& pos) const | ||
| 279 | { | ||
| 280 | if constexpr (numTurbulenceEq(ModelTraits::turbulenceModel()) == 0) // zero equation models | ||
| 281 | ✗ | return; | |
| 282 | else if constexpr (numTurbulenceEq(ModelTraits::turbulenceModel()) == 1) // one equation models | ||
| 283 | { | ||
| 284 |
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19042818 | if(isOutlet_(pos)) |
| 285 | 1448019 | values.setOutflow(Indices::viscosityTildeIdx); | |
| 286 | else // walls and inflow | ||
| 287 | 8073390 | values.setDirichlet(Indices::viscosityTildeIdx); | |
| 288 | } | ||
| 289 | else // two equation models | ||
| 290 | { | ||
| 291 | static_assert(numTurbulenceEq(ModelTraits::turbulenceModel()) == 2, "Only reached by 2eq models"); | ||
| 292 |
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316236888 | if(isOutlet_(pos)) |
| 293 | { | ||
| 294 | 11350431 | values.setOutflow(Indices::turbulentKineticEnergyEqIdx); | |
| 295 | 11350431 | values.setOutflow(Indices::dissipationEqIdx); | |
| 296 | } | ||
| 297 | else | ||
| 298 | { | ||
| 299 | // walls and inflow | ||
| 300 | 146768013 | values.setDirichlet(Indices::turbulentKineticEnergyIdx); | |
| 301 | 146768013 | values.setDirichlet(Indices::dissipationIdx); | |
| 302 | } | ||
| 303 | } | ||
| 304 | 158118444 | } | |
| 305 | |||
| 306 | template<class Element, class FVElementGeometry, class SubControlVolume> | ||
| 307 | 35230960 | bool isDirichletCell_([[maybe_unused]] const Element& element, | |
| 308 | const FVElementGeometry& fvGeometry, | ||
| 309 | [[maybe_unused]] const SubControlVolume& scv, | ||
| 310 | const int& pvIdx) const | ||
| 311 | { | ||
| 312 | if constexpr (ModelTraits::turbulenceModel() == TurbulenceModel::kepsilon) | ||
| 313 | { | ||
| 314 | 20102080 | const auto eIdx = fvGeometry.gridGeometry().elementMapper().index(element); | |
| 315 | // For the kepsilon model we set fixed values within the matching point and at the wall | ||
| 316 |
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10051040 | if (this->inNearWallRegion(eIdx)) |
| 317 | 5421184 | return pvIdx == Indices::turbulentKineticEnergyEqIdx || pvIdx == Indices::dissipationEqIdx; | |
| 318 |
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4629856 | if (this->isMatchingPoint(eIdx)) |
| 319 | 658302 | return pvIdx == Indices::dissipationEqIdx; | |
| 320 | return false; | ||
| 321 | } | ||
| 322 | else if constexpr (ModelTraits::turbulenceModel() == TurbulenceModel::komega || | ||
| 323 | ModelTraits::turbulenceModel() == TurbulenceModel::sst ) | ||
| 324 | { | ||
| 325 | // For the komega model we set a fixed dissipation (omega) for all cells at the wall | ||
| 326 |
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250851376 | for (const auto& scvf : scvfs(fvGeometry)) |
| 327 |
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100482724 | if (this->boundaryTypes(element, scvf).hasWall() && pvIdx == Indices::dissipationIdx) |
| 328 | 236956 | return true; | |
| 329 | 24942964 | return false; | |
| 330 | } | ||
| 331 | else | ||
| 332 | ✗ | return ParentType::isDirichletCell(element, fvGeometry, scv, pvIdx); | |
| 333 | } | ||
| 334 | |||
| 335 | //! Specialization for the kepsilon and komega | ||
| 336 | template<class Element, class SubControlVolume> | ||
| 337 | 2753116 | PrimaryVariables dirichletTurbulentTwoEq_(const Element& element, | |
| 338 | const SubControlVolume& scv) const | ||
| 339 | { | ||
| 340 | 2753116 | const auto globalPos = scv.center(); | |
| 341 | 2753116 | PrimaryVariables values(initialAtPos(globalPos)); | |
| 342 | 8259348 | unsigned int elementIdx = this->gridGeometry().elementMapper().index(element); | |
| 343 | |||
| 344 | if constexpr (ModelTraits::turbulenceModel() == TurbulenceModel::kepsilon) | ||
| 345 | { | ||
| 346 | // For the kepsilon model we set a fixed value for the turbulent kinetic energy and the dissipation | ||
| 347 | 2521570 | values[Indices::turbulentKineticEnergyEqIdx] = this->turbulentKineticEnergyWallFunction(elementIdx); | |
| 348 | 2521570 | values[Indices::dissipationEqIdx] = this->dissipationWallFunction(elementIdx); | |
| 349 | 2521570 | return values; | |
| 350 | } | ||
| 351 | else | ||
| 352 | { | ||
| 353 | static_assert(ModelTraits::turbulenceModel() == TurbulenceModel::komega || | ||
| 354 | ModelTraits::turbulenceModel() == TurbulenceModel::sst, "Only valid for SST and KOmega Models"); | ||
| 355 | // For the komega model we set a fixed value for the dissipation | ||
| 356 | 463092 | const auto wallDistance = ParentType::wallDistance(elementIdx); | |
| 357 | using std::pow; | ||
| 358 | 926184 | values[Indices::dissipationEqIdx] = 6.0 * ParentType::kinematicViscosity(elementIdx) | |
| 359 | 231546 | / (ParentType::betaOmega() * wallDistance * wallDistance); | |
| 360 | 231546 | return values; | |
| 361 | } | ||
| 362 | } | ||
| 363 | |||
| 364 | const Scalar eps_; | ||
| 365 | Scalar inletVelocity_; | ||
| 366 | Scalar inletMoleFraction_; | ||
| 367 | Scalar inletTemperature_; | ||
| 368 | Scalar wallTemperature_; | ||
| 369 | Scalar viscosityTilde_; | ||
| 370 | Scalar turbulentKineticEnergy_; | ||
| 371 | Scalar dissipation_; | ||
| 372 | TimeLoopPtr timeLoop_; | ||
| 373 | std::string turbulenceModelName_; | ||
| 374 | }; | ||
| 375 | } // end namespace Dumux | ||
| 376 | |||
| 377 | #endif | ||
| 378 |