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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-FileCopyrightText: 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 NavierStokesModel | ||
| 10 | * \copydoc Dumux::NavierStokesMassOnePNCFluxVariables | ||
| 11 | */ | ||
| 12 | #ifndef DUMUX_NAVIERSTOKES_MASS_1PNC_FLUXVARIABLES_HH | ||
| 13 | #define DUMUX_NAVIERSTOKES_MASS_1PNC_FLUXVARIABLES_HH | ||
| 14 | |||
| 15 | #include <dumux/common/typetraits/problem.hh> | ||
| 16 | #include <dumux/flux/referencesystemformulation.hh> | ||
| 17 | #include <dumux/flux/upwindscheme.hh> | ||
| 18 | #include <dumux/freeflow/navierstokes/scalarfluxvariables.hh> | ||
| 19 | |||
| 20 | #include "advectiveflux.hh" | ||
| 21 | |||
| 22 | namespace Dumux { | ||
| 23 | |||
| 24 | /*! | ||
| 25 | * \ingroup NavierStokesModel | ||
| 26 | * \brief The flux variables class for the single-phase flow, | ||
| 27 | * multi-component Navier-Stokes model. | ||
| 28 | */ | ||
| 29 | template<class Problem, | ||
| 30 | class ModelTraits, | ||
| 31 | class FluxTs, | ||
| 32 | class ElementVolumeVariables, | ||
| 33 | class ElementFluxVariablesCache, | ||
| 34 | class UpwindScheme = UpwindScheme<typename ProblemTraits<Problem>::GridGeometry>> | ||
| 35 | class NavierStokesMassOnePNCFluxVariables | ||
| 36 | : public NavierStokesScalarConservationModelFluxVariables<Problem, | ||
| 37 | ModelTraits, | ||
| 38 | FluxTs, | ||
| 39 | ElementVolumeVariables, | ||
| 40 | ElementFluxVariablesCache, | ||
| 41 | UpwindScheme> | ||
| 42 | { | ||
| 43 | using VolumeVariables = typename ElementVolumeVariables::VolumeVariables; | ||
| 44 | using NumEqVector = typename VolumeVariables::PrimaryVariables; | ||
| 45 | using Scalar = typename VolumeVariables::PrimaryVariables::value_type; | ||
| 46 | using Indices = typename ModelTraits::Indices; | ||
| 47 | |||
| 48 | static constexpr bool enableMolecularDiffusion = ModelTraits::enableMolecularDiffusion(); | ||
| 49 | static constexpr auto replaceCompEqIdx = ModelTraits::replaceCompEqIdx(); | ||
| 50 | static constexpr bool useTotalMassBalance = replaceCompEqIdx < ModelTraits::numFluidComponents(); | ||
| 51 | |||
| 52 | using FluidSystem = typename VolumeVariables::FluidSystem; | ||
| 53 | |||
| 54 | using ParentType = NavierStokesScalarConservationModelFluxVariables<Problem, | ||
| 55 | ModelTraits, | ||
| 56 | FluxTs, | ||
| 57 | ElementVolumeVariables, | ||
| 58 | ElementFluxVariablesCache, | ||
| 59 | UpwindScheme>; | ||
| 60 | |||
| 61 | public: | ||
| 62 | |||
| 63 | static constexpr auto numComponents = ModelTraits::numFluidComponents(); | ||
| 64 | static constexpr bool useMoles = ModelTraits::useMoles(); | ||
| 65 | using MolecularDiffusionType = typename FluxTs::MolecularDiffusionType; | ||
| 66 | |||
| 67 | /*! | ||
| 68 | * \brief Returns the diffusive fluxes computed by the respective law. | ||
| 69 | */ | ||
| 70 | 18901302 | NumEqVector molecularDiffusionFlux(int phaseIdx = 0) const | |
| 71 | { | ||
| 72 | 18901302 | NumEqVector result(0.0); | |
| 73 | if constexpr (enableMolecularDiffusion) | ||
| 74 | { | ||
| 75 | 18901302 | const auto diffusiveFluxes = MolecularDiffusionType::flux(this->problem(), | |
| 76 | 18901302 | this->element(), | |
| 77 | 18901302 | this->fvGeometry(), | |
| 78 | 18901302 | this->elemVolVars(), | |
| 79 | 18901302 | this->scvFace(), | |
| 80 | phaseIdx, | ||
| 81 | 18901302 | this->elemFluxVarsCache()); | |
| 82 | |||
| 83 | static constexpr auto referenceSystemFormulation = MolecularDiffusionType::referenceSystemFormulation(); | ||
| 84 | |||
| 85 |
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57650466 | for (int compIdx = 0; compIdx < numComponents; ++compIdx) |
| 86 | { | ||
| 87 | // get equation index | ||
| 88 | 38749164 | const auto eqIdx = Indices::conti0EqIdx + compIdx; | |
| 89 |
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31836688 | if (eqIdx == replaceCompEqIdx) |
| 90 | 15445064 | continue; | |
| 91 | |||
| 92 | //check for the reference system and adapt units of the diffusive flux accordingly. | ||
| 93 | if constexpr (referenceSystemFormulation == ReferenceSystemFormulation::massAveraged) | ||
| 94 |
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30216576 | result[eqIdx] += useMoles ? diffusiveFluxes[compIdx]/FluidSystem::molarMass(compIdx) |
| 95 | : diffusiveFluxes[compIdx]; | ||
| 96 | else if constexpr (referenceSystemFormulation == ReferenceSystemFormulation::molarAveraged) | ||
| 97 | result[eqIdx] += useMoles ? diffusiveFluxes[compIdx] | ||
| 98 | : diffusiveFluxes[compIdx]*FluidSystem::molarMass(compIdx); | ||
| 99 | else | ||
| 100 | DUNE_THROW(Dune::NotImplemented, "other reference systems than mass and molar averaged are not implemented"); | ||
| 101 | } | ||
| 102 | |||
| 103 | // in case one balance is substituted by the total mass balance | ||
| 104 | if constexpr(useTotalMassBalance) | ||
| 105 | { | ||
| 106 |
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47281752 | for (int compIdx = 0; compIdx < numComponents; ++compIdx) |
| 107 | { | ||
| 108 | //check for the reference system and adapt units of the diffusive flux accordingly. | ||
| 109 | if constexpr (referenceSystemFormulation == ReferenceSystemFormulation::massAveraged) | ||
| 110 | 31836688 | result[replaceCompEqIdx] += diffusiveFluxes[compIdx]; | |
| 111 | else if constexpr (referenceSystemFormulation == ReferenceSystemFormulation::molarAveraged) | ||
| 112 | result[replaceCompEqIdx] += diffusiveFluxes[compIdx]*FluidSystem::molarMass(compIdx); | ||
| 113 | else | ||
| 114 | DUNE_THROW(Dune::NotImplemented, "other reference systems than mass and molar averaged are not implemented"); | ||
| 115 | } | ||
| 116 | } | ||
| 117 | } | ||
| 118 | |||
| 119 | 18901302 | return result; | |
| 120 | } | ||
| 121 | |||
| 122 | /*! | ||
| 123 | * \brief Returns the flux of enthalpy in J/s carried by diffusing molecules. | ||
| 124 | */ | ||
| 125 | 5274380 | Scalar diffusiveEnthalpyFlux(int phaseIdx = 0) const | |
| 126 | { | ||
| 127 | 5274380 | const auto diffusiveFlux = MolecularDiffusionType::flux(this->problem(), | |
| 128 | 5274380 | this->element(), | |
| 129 | 5274380 | this->fvGeometry(), | |
| 130 | 5274380 | this->elemVolVars(), | |
| 131 | 5274380 | this->scvFace(), | |
| 132 | phaseIdx, | ||
| 133 | 5274380 | this->elemFluxVarsCache()); | |
| 134 | static constexpr auto referenceSystemFormulation = MolecularDiffusionType::referenceSystemFormulation(); | ||
| 135 | 5274380 | Scalar flux = 0.0; | |
| 136 | 5274380 | const auto& scvf = this->scvFace(); | |
| 137 | 5274380 | const auto& elemVolVars = this->elemVolVars(); | |
| 138 | |||
| 139 | 10548760 | const auto componentEnthalpy = [](const auto& volVars, int compIdx) | |
| 140 | 10548760 | { return FluidSystem::componentEnthalpy(volVars.fluidState(), 0, compIdx); }; | |
| 141 | |||
| 142 |
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15823140 | for (int compIdx = 0; compIdx < numComponents; ++compIdx) |
| 143 | { | ||
| 144 | // do a simple upwinding of enthalpy based on the direction of the diffusive flux | ||
| 145 | using std::signbit; | ||
| 146 |
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10548760 | const bool insideIsUpstream = !signbit(diffusiveFlux[compIdx]); |
| 147 |
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10548760 | const auto& upstreamVolVars = insideIsUpstream ? elemVolVars[scvf.insideScvIdx()] : elemVolVars[scvf.outsideScvIdx()]; |
| 148 | |||
| 149 | if constexpr (referenceSystemFormulation == ReferenceSystemFormulation::massAveraged) | ||
| 150 | 10548760 | flux += diffusiveFlux[compIdx] * componentEnthalpy(upstreamVolVars, compIdx); | |
| 151 | else | ||
| 152 | flux += diffusiveFlux[compIdx] * componentEnthalpy(upstreamVolVars, compIdx)* elemVolVars[scvf.insideScvIdx()].molarMass(compIdx); | ||
| 153 | } | ||
| 154 | |||
| 155 | 5274380 | return flux; | |
| 156 | } | ||
| 157 | |||
| 158 | /*! | ||
| 159 | * \brief Returns the advective mass flux in kg/s | ||
| 160 | * or the advective mole flux in mole/s. | ||
| 161 | */ | ||
| 162 | NumEqVector advectiveFlux(int phaseIdx = 0) const | ||
| 163 | { | ||
| 164 | NumEqVector result(0.0); | ||
| 165 | // g++ requires to capture 'this' by value | ||
| 166 | const auto upwinding = [this](const auto& term) { return this->getAdvectiveFlux(term); }; | ||
| 167 | AdvectiveFlux<ModelTraits>::addAdvectiveFlux(result, upwinding); | ||
| 168 | return result; | ||
| 169 | } | ||
| 170 | |||
| 171 | /*! | ||
| 172 | * \brief Returns all fluxes for the single-phase flow, multi-component | ||
| 173 | * Navier-Stokes model: the advective mass flux in kg/s | ||
| 174 | * or the advective mole flux in mole/s and the energy flux | ||
| 175 | * in J/s (for nonisothermal models). | ||
| 176 | */ | ||
| 177 | 18901302 | NumEqVector flux(int phaseIdx = 0) const | |
| 178 | { | ||
| 179 | 18901302 | const auto diffusiveFlux = molecularDiffusionFlux(phaseIdx); | |
| 180 | 18901302 | NumEqVector flux = diffusiveFlux; | |
| 181 | // g++ requires to capture 'this' by value | ||
| 182 | 38749164 | const auto upwinding = [this](const auto& term) { return this->getAdvectiveFlux(term); }; | |
| 183 | 18901302 | AdvectiveFlux<ModelTraits>::addAdvectiveFlux(flux, upwinding); | |
| 184 | |||
| 185 | if constexpr (ModelTraits::enableEnergyBalance()) | ||
| 186 | { | ||
| 187 | 5274380 | ParentType::addHeatFlux(flux); | |
| 188 | 5274380 | flux[ModelTraits::Indices::energyEqIdx] += diffusiveEnthalpyFlux(); | |
| 189 | } | ||
| 190 | |||
| 191 | 18901302 | return flux; | |
| 192 | } | ||
| 193 | |||
| 194 | }; | ||
| 195 | |||
| 196 | } // end namespace Dumux | ||
| 197 | |||
| 198 | #endif | ||
| 199 |