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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 LowReKEpsilonModel | ||
| 10 | * \copydoc Dumux::LowReKEpsilonFluxVariablesImpl | ||
| 11 | */ | ||
| 12 | #ifndef DUMUX_LOWREKEPSILON_STAGGERED_FLUXVARIABLES_HH | ||
| 13 | #define DUMUX_LOWREKEPSILON_STAGGERED_FLUXVARIABLES_HH | ||
| 14 | |||
| 15 | #include <numeric> | ||
| 16 | #include <dumux/common/properties.hh> | ||
| 17 | #include <dumux/flux/fluxvariablesbase.hh> | ||
| 18 | #include <dumux/discretization/method.hh> | ||
| 19 | #include <dumux/discretization/extrusion.hh> | ||
| 20 | #include <dumux/freeflow/navierstokes/fluxvariables.hh> | ||
| 21 | #include <dumux/freeflow/rans/twoeq/lowrekepsilon/fluxvariables.hh> | ||
| 22 | |||
| 23 | namespace Dumux { | ||
| 24 | |||
| 25 | /*! | ||
| 26 | * \ingroup LowReKEpsilonModel | ||
| 27 | * \brief The flux variables class for the low-Reynolds k-epsilon model using the staggered grid discretization. | ||
| 28 | */ | ||
| 29 | |||
| 30 | // forward declaration | ||
| 31 | template<class TypeTag, class BaseFluxVariables, class DiscretizationMethod> | ||
| 32 | class LowReKEpsilonFluxVariablesImpl; | ||
| 33 | |||
| 34 | template<class TypeTag, class BaseFluxVariables> | ||
| 35 | class LowReKEpsilonFluxVariablesImpl<TypeTag, BaseFluxVariables, DiscretizationMethods::Staggered> | ||
| 36 | : public BaseFluxVariables | ||
| 37 | { | ||
| 38 | using ParentType = BaseFluxVariables; | ||
| 39 | |||
| 40 | using GridVariables = GetPropType<TypeTag, Properties::GridVariables>; | ||
| 41 | |||
| 42 | using GridVolumeVariables = typename GridVariables::GridVolumeVariables; | ||
| 43 | using ElementVolumeVariables = typename GridVolumeVariables::LocalView; | ||
| 44 | using VolumeVariables = typename GridVolumeVariables::VolumeVariables; | ||
| 45 | |||
| 46 | using GridFluxVariablesCache = typename GridVariables::GridFluxVariablesCache; | ||
| 47 | using FluxVariablesCache = typename GridFluxVariablesCache::FluxVariablesCache; | ||
| 48 | |||
| 49 | using GridFaceVariables = typename GridVariables::GridFaceVariables; | ||
| 50 | using ElementFaceVariables = typename GridFaceVariables::LocalView; | ||
| 51 | using FaceVariables = typename GridFaceVariables::FaceVariables; | ||
| 52 | |||
| 53 | using ModelTraits = GetPropType<TypeTag, Properties::ModelTraits>; | ||
| 54 | using Scalar = GetPropType<TypeTag, Properties::Scalar>; | ||
| 55 | using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>; | ||
| 56 | using FVElementGeometry = typename GridGeometry::LocalView; | ||
| 57 | using SubControlVolumeFace = typename GridGeometry::SubControlVolumeFace; | ||
| 58 | using Extrusion = Extrusion_t<GridGeometry>; | ||
| 59 | using GridView = typename GridGeometry::GridView; | ||
| 60 | using Problem = GetPropType<TypeTag, Properties::Problem>; | ||
| 61 | using Element = typename GridView::template Codim<0>::Entity; | ||
| 62 | using Indices = typename GetPropType<TypeTag, Properties::ModelTraits>::Indices; | ||
| 63 | using CellCenterPrimaryVariables = GetPropType<TypeTag, Properties::CellCenterPrimaryVariables>; | ||
| 64 | using FacePrimaryVariables = GetPropType<TypeTag, Properties::FacePrimaryVariables>; | ||
| 65 | |||
| 66 | static constexpr int turbulentKineticEnergyEqIdx = Indices::turbulentKineticEnergyEqIdx - ModelTraits::dim(); | ||
| 67 | static constexpr int dissipationEqIdx = Indices::dissipationEqIdx - ModelTraits::dim(); | ||
| 68 | |||
| 69 | public: | ||
| 70 | |||
| 71 | /*! | ||
| 72 | * \brief Computes the flux for the cell center residual. | ||
| 73 | */ | ||
| 74 | 20190354 | CellCenterPrimaryVariables computeMassFlux(const Problem& problem, | |
| 75 | const Element &element, | ||
| 76 | const FVElementGeometry& fvGeometry, | ||
| 77 | const ElementVolumeVariables& elemVolVars, | ||
| 78 | const ElementFaceVariables& elemFaceVars, | ||
| 79 | const SubControlVolumeFace &scvf, | ||
| 80 | const FluxVariablesCache& fluxVarsCache) | ||
| 81 | { | ||
| 82 | 20190354 | CellCenterPrimaryVariables flux = ParentType::computeMassFlux(problem, element, fvGeometry, | |
| 83 | elemVolVars, elemFaceVars, scvf, fluxVarsCache); | ||
| 84 | |||
| 85 | // calculate advective flux | ||
| 86 | ✗ | auto upwindTermK = [](const auto& volVars) | |
| 87 | { | ||
| 88 | 80761416 | return volVars.turbulentKineticEnergy() * volVars.density(); | |
| 89 | }; | ||
| 90 | ✗ | auto upwindTermEpsilon = [](const auto& volVars) | |
| 91 | { | ||
| 92 | 80761416 | return volVars.dissipationTilde() * volVars.density(); | |
| 93 | }; | ||
| 94 | |||
| 95 | 40380708 | flux[turbulentKineticEnergyEqIdx] | |
| 96 | 20190354 | = ParentType::advectiveFluxForCellCenter(problem, fvGeometry, elemVolVars, elemFaceVars, scvf, upwindTermK); | |
| 97 | 40380708 | flux[dissipationEqIdx] | |
| 98 | 20190354 | = ParentType::advectiveFluxForCellCenter(problem, fvGeometry, elemVolVars, elemFaceVars, scvf, upwindTermEpsilon); | |
| 99 | |||
| 100 | // calculate diffusive flux | ||
| 101 | 40380708 | const auto& insideScv = fvGeometry.scv(scvf.insideScvIdx()); | |
| 102 | 40380708 | const auto& outsideScv = fvGeometry.scv(scvf.outsideScvIdx()); | |
| 103 | 40380708 | const auto& insideVolVars = elemVolVars[scvf.insideScvIdx()]; | |
| 104 | 40380708 | const auto& outsideVolVars = elemVolVars[scvf.outsideScvIdx()]; | |
| 105 | |||
| 106 | // effective diffusion coefficients | ||
| 107 |
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20190354 | Scalar insideCoeff_k = insideVolVars.viscosity() + insideVolVars.kinematicEddyViscosity() |
| 108 |
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40380708 | * insideVolVars.density() / insideVolVars.sigmaK(); |
| 109 |
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20190354 | Scalar outsideCoeff_k = outsideVolVars.viscosity() + outsideVolVars.kinematicEddyViscosity() |
| 110 |
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40380708 | * outsideVolVars.density() / outsideVolVars.sigmaK(); |
| 111 |
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20190354 | Scalar insideCoeff_e = insideVolVars.viscosity() + insideVolVars.kinematicEddyViscosity() |
| 112 |
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40380708 | * insideVolVars.density() / insideVolVars.sigmaEpsilon(); |
| 113 |
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20190354 | Scalar outsideCoeff_e = outsideVolVars.viscosity() + outsideVolVars.kinematicEddyViscosity() |
| 114 |
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40380708 | * outsideVolVars.density() / outsideVolVars.sigmaEpsilon(); |
| 115 | |||
| 116 | // scale by extrusion factor | ||
| 117 | 20190354 | insideCoeff_k *= insideVolVars.extrusionFactor(); | |
| 118 | 20190354 | outsideCoeff_k *= outsideVolVars.extrusionFactor(); | |
| 119 | 20190354 | insideCoeff_e *= insideVolVars.extrusionFactor(); | |
| 120 | 20190354 | outsideCoeff_e *= outsideVolVars.extrusionFactor(); | |
| 121 | |||
| 122 | 20190354 | Scalar coeff_k = 0.0; | |
| 123 | 20190354 | Scalar coeff_e = 0.0; | |
| 124 | 20190354 | Scalar distance = 0.0; | |
| 125 |
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20190354 | if (scvf.boundary()) |
| 126 | { | ||
| 127 | 1173870 | coeff_k = insideCoeff_k; | |
| 128 | 1173870 | coeff_e = insideCoeff_e; | |
| 129 | 5869350 | distance = (insideScv.dofPosition() - scvf.ipGlobal()).two_norm(); | |
| 130 | } | ||
| 131 | else | ||
| 132 | { | ||
| 133 | // average and distance | ||
| 134 |
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19016484 | coeff_k = arithmeticMean(insideCoeff_k, outsideCoeff_k, |
| 135 | 76065936 | (outsideScv.dofPosition() - scvf.ipGlobal()).two_norm(), | |
| 136 | 76065936 | (insideScv.dofPosition() - scvf.ipGlobal()).two_norm()); | |
| 137 |
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19016484 | coeff_e = arithmeticMean(insideCoeff_e, outsideCoeff_e, |
| 138 | 76065936 | (outsideScv.dofPosition() - scvf.ipGlobal()).two_norm(), | |
| 139 | 76065936 | (insideScv.dofPosition() - scvf.ipGlobal()).two_norm()); | |
| 140 | 95082420 | distance = (outsideScv.dofPosition() - insideScv.dofPosition()).two_norm(); | |
| 141 | } | ||
| 142 | |||
| 143 | 20190354 | const auto bcTypes = problem.boundaryTypes(element, scvf); | |
| 144 |
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20190354 | if (!(scvf.boundary() && (bcTypes.isOutflow(Indices::turbulentKineticEnergyEqIdx) |
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2347740 | || bcTypes.isSymmetry()))) |
| 146 | { | ||
| 147 | 59349870 | flux[turbulentKineticEnergyEqIdx] | |
| 148 | 19783290 | += coeff_k / distance | |
| 149 | 19783290 | * (insideVolVars.turbulentKineticEnergy() - outsideVolVars.turbulentKineticEnergy()) | |
| 150 | 39566580 | * Extrusion::area(fvGeometry, scvf); | |
| 151 | } | ||
| 152 |
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20190354 | if (!(scvf.boundary() && (bcTypes.isOutflow(Indices::dissipationEqIdx) |
| 153 |
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2347740 | || bcTypes.isSymmetry()))) |
| 154 | { | ||
| 155 | 59349870 | flux[dissipationEqIdx] | |
| 156 | 19783290 | += coeff_e / distance | |
| 157 | 19783290 | * (insideVolVars.dissipationTilde() - outsideVolVars.dissipationTilde()) | |
| 158 | 39566580 | * Extrusion::area(fvGeometry, scvf); | |
| 159 | } | ||
| 160 | 20190354 | return flux; | |
| 161 | } | ||
| 162 | |||
| 163 | /*! | ||
| 164 | * \brief Returns the momentum flux over all staggered faces. | ||
| 165 | */ | ||
| 166 | 16592064 | FacePrimaryVariables computeMomentumFlux(const Problem& problem, | |
| 167 | const Element& element, | ||
| 168 | const SubControlVolumeFace& scvf, | ||
| 169 | const FVElementGeometry& fvGeometry, | ||
| 170 | const ElementVolumeVariables& elemVolVars, | ||
| 171 | const ElementFaceVariables& elemFaceVars, | ||
| 172 | const GridFluxVariablesCache& gridFluxVarsCache) | ||
| 173 | { | ||
| 174 | 33184128 | const auto& insideVolVars = elemVolVars[scvf.insideScvIdx()]; | |
| 175 | |||
| 176 | 16592064 | return ParentType::computeFrontalMomentumFlux(problem, element, scvf, fvGeometry, elemVolVars, elemFaceVars, gridFluxVarsCache) | |
| 177 | 66368256 | + ParentType::computeLateralMomentumFlux(problem, element, scvf, fvGeometry, elemVolVars, elemFaceVars, gridFluxVarsCache) | |
| 178 | 16592064 | + 2.0 / ModelTraits::dim() * insideVolVars.density() * insideVolVars.turbulentKineticEnergy() | |
| 179 | 33184128 | * Extrusion::area(fvGeometry, scvf) * scvf.directionSign() * insideVolVars.extrusionFactor(); | |
| 180 | } | ||
| 181 | }; | ||
| 182 | |||
| 183 | } // end namespace | ||
| 184 | |||
| 185 | #endif | ||
| 186 |