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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 | * | ||
| 11 | * \copydoc Dumux::LowReKEpsilonVolumeVariables | ||
| 12 | */ | ||
| 13 | #ifndef DUMUX_LOWREKEPSILON_VOLUME_VARIABLES_HH | ||
| 14 | #define DUMUX_LOWREKEPSILON_VOLUME_VARIABLES_HH | ||
| 15 | |||
| 16 | #include <dumux/common/parameters.hh> | ||
| 17 | #include <dumux/freeflow/rans/volumevariables.hh> | ||
| 18 | |||
| 19 | namespace Dumux { | ||
| 20 | |||
| 21 | /*! | ||
| 22 | * \ingroup LowReKEpsilonModel | ||
| 23 | * \brief Volume variables for the isothermal single-phase low-Re k-epsilons model. | ||
| 24 | */ | ||
| 25 | template <class Traits, class NSVolumeVariables> | ||
| 26 |
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145680 | class LowReKEpsilonVolumeVariables |
| 27 | : public RANSVolumeVariables<Traits, NSVolumeVariables> | ||
| 28 | { | ||
| 29 | using RANSParentType = RANSVolumeVariables<Traits, NSVolumeVariables>; | ||
| 30 | |||
| 31 | using Scalar = typename Traits::PrimaryVariables::value_type; | ||
| 32 | |||
| 33 | public: | ||
| 34 | //! export the indices type | ||
| 35 | using Indices = typename Traits::ModelTraits::Indices; | ||
| 36 | |||
| 37 | /*! | ||
| 38 | * \brief Update all quantities for a given control volume | ||
| 39 | * | ||
| 40 | * \param elemSol A vector containing all primary variables connected to the element | ||
| 41 | * \param problem The object specifying the problem which ought to | ||
| 42 | * be simulated | ||
| 43 | * \param element An element which contains part of the control volume | ||
| 44 | * \param scv The sub-control volume | ||
| 45 | */ | ||
| 46 | template<class ElementSolution, class Problem, class Element, class SubControlVolume> | ||
| 47 | 14089028 | void update(const ElementSolution &elemSol, | |
| 48 | const Problem &problem, | ||
| 49 | const Element &element, | ||
| 50 | const SubControlVolume& scv) | ||
| 51 | { | ||
| 52 | 14089028 | RANSParentType::updateNavierStokesVolVars(elemSol, problem, element, scv); | |
| 53 | 14089028 | updateRANSProperties(elemSol, problem, element, scv); | |
| 54 | 14089028 | } | |
| 55 | |||
| 56 | /*! | ||
| 57 | * \brief Update all turbulent quantities for a given control volume | ||
| 58 | * | ||
| 59 | * Wall and roughness related quantities are stored. Eddy viscosity is set. | ||
| 60 | * | ||
| 61 | * \param elemSol A vector containing all primary variables connected to the element | ||
| 62 | * \param problem The object specifying the problem which ought to be simulated | ||
| 63 | * \param element An element which contains part of the control volume | ||
| 64 | * \param scv The sub-control volume | ||
| 65 | */ | ||
| 66 | template<class ElementSolution, class Problem, class Element, class SubControlVolume> | ||
| 67 | 14089028 | void updateRANSProperties(const ElementSolution &elemSol, | |
| 68 | const Problem &problem, | ||
| 69 | const Element &element, | ||
| 70 | const SubControlVolume& scv) | ||
| 71 | { | ||
| 72 | 14089028 | RANSParentType::updateRANSProperties(elemSol, problem, element, scv); | |
| 73 | 14089028 | turbulentKineticEnergy_ = elemSol[0][Indices::turbulentKineticEnergyIdx]; | |
| 74 | 14089028 | dissipationTilde_ = elemSol[0][Indices::dissipationIdx]; | |
| 75 | 14089028 | storedDissipationTilde_ = problem.storedDissipationTilde(RANSParentType::elementIdx()); | |
| 76 | 14089028 | storedTurbulentKineticEnergy_ = problem.storedTurbulentKineticEnergy(RANSParentType::elementIdx()); | |
| 77 | 14089028 | stressTensorScalarProduct_ = problem.stressTensorScalarProduct(RANSParentType::elementIdx()); | |
| 78 |
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14089028 | if (problem.useStoredEddyViscosity()) |
| 79 | 28178056 | RANSParentType::setDynamicEddyViscosity_(problem.storedDynamicEddyViscosity(RANSParentType::elementIdx())); | |
| 80 | else | ||
| 81 | ✗ | RANSParentType::setDynamicEddyViscosity_(calculateEddyViscosity()); | |
| 82 | 14089028 | RANSParentType::calculateEddyDiffusivity(problem); | |
| 83 | 14089028 | RANSParentType::calculateEddyThermalConductivity(problem); | |
| 84 | 14089028 | } | |
| 85 | |||
| 86 | /*! | ||
| 87 | * \brief Returns the dynamic eddy viscosity \f$\mathrm{[Pa s]}\f$. | ||
| 88 | */ | ||
| 89 | 34464 | Scalar calculateEddyViscosity() | |
| 90 | { | ||
| 91 | 68928 | return cMu() * fMu() * turbulentKineticEnergy() * turbulentKineticEnergy() | |
| 92 | 68928 | / dissipationTilde() * RANSParentType::density(); | |
| 93 | } | ||
| 94 | |||
| 95 | /*! | ||
| 96 | * \brief Returns the turbulent kinetic energy \f$ m^2/s^2 \f$ | ||
| 97 | */ | ||
| 98 | ✗ | Scalar turbulentKineticEnergy() const | |
| 99 | ✗ | { return turbulentKineticEnergy_; } | |
| 100 | |||
| 101 | /*! | ||
| 102 | * \brief Returns an effective dissipation \f$ m^2/s^3 \f$ | ||
| 103 | */ | ||
| 104 | ✗ | Scalar dissipationTilde() const | |
| 105 | ✗ | { return dissipationTilde_; } | |
| 106 | |||
| 107 | /*! | ||
| 108 | * \brief Returns the turbulent kinetic energy \f$ m^2/s^2 \f$ | ||
| 109 | */ | ||
| 110 | Scalar storedTurbulentKineticEnergy() const | ||
| 111 | { return storedTurbulentKineticEnergy_; } | ||
| 112 | |||
| 113 | /*! | ||
| 114 | * \brief Returns an effective dissipation \f$ m^2/s^3 \f$ | ||
| 115 | */ | ||
| 116 | Scalar storedDissipationTilde() const | ||
| 117 | { return storedDissipationTilde_; } | ||
| 118 | |||
| 119 | /*! | ||
| 120 | * \brief Returns the scalar product of the stress tensor | ||
| 121 | */ | ||
| 122 | ✗ | Scalar stressTensorScalarProduct() const | |
| 123 | ✗ | { return stressTensorScalarProduct_; } | |
| 124 | |||
| 125 | //! \brief Returns the \f$ Re_\textrm{T} \f$ value | ||
| 126 | const Scalar reT() const | ||
| 127 | { | ||
| 128 | 10133760 | return turbulentKineticEnergy() * turbulentKineticEnergy() | |
| 129 | 20267520 | / RANSParentType::kinematicViscosity() / dissipationTilde(); | |
| 130 | } | ||
| 131 | |||
| 132 | //! \brief Returns the \f$ Re_\textrm{y} \f$ value | ||
| 133 | const Scalar reY() const | ||
| 134 | { | ||
| 135 | using std::sqrt; | ||
| 136 | return sqrt(turbulentKineticEnergy()) * RANSParentType::wallDistance() | ||
| 137 | / RANSParentType::kinematicViscosity(); | ||
| 138 | } | ||
| 139 | |||
| 140 | //! \brief Returns the \f$ C_\mu \f$ constant | ||
| 141 | ✗ | const Scalar cMu() const | |
| 142 | ✗ | { return 0.09; } | |
| 143 | |||
| 144 | //! \brief Returns the \f$ \sigma_\textrm{k} \f$ constant | ||
| 145 | ✗ | const Scalar sigmaK() const | |
| 146 | ✗ | { return 1.0; } | |
| 147 | |||
| 148 | //! \brief Returns the \f$ \sigma_\varepsilon \f$ constant | ||
| 149 | ✗ | const Scalar sigmaEpsilon() const | |
| 150 | ✗ | { return 1.3; } | |
| 151 | |||
| 152 | //! \brief Returns the \f$ C_{1\tilde{\varepsilon}} \f$ constant | ||
| 153 | ✗ | const Scalar cOneEpsilon() const | |
| 154 | ✗ | { return 1.35; } | |
| 155 | |||
| 156 | //! \brief Returns the \f$ C_{2\tilde{\varepsilon}} \f$ constant | ||
| 157 | ✗ | const Scalar cTwoEpsilon() const | |
| 158 | ✗ | { return 1.8; } | |
| 159 | |||
| 160 | //! \brief Returns the \f$ D \f$ value | ||
| 161 | const Scalar dValue() const | ||
| 162 | { | ||
| 163 | 5066880 | return 2.0 * RANSParentType::kinematicViscosity() * turbulentKineticEnergy() | |
| 164 | 5066880 | / RANSParentType::wallDistance() / RANSParentType::wallDistance(); | |
| 165 | } | ||
| 166 | |||
| 167 | //! \brief Returns the \f$ f_\mu \f$ value | ||
| 168 | const Scalar fMu() const | ||
| 169 | { | ||
| 170 | using std::exp; | ||
| 171 | 34364 | return 1.0 - exp(-0.0115 * RANSParentType::yPlus()); | |
| 172 | } | ||
| 173 | |||
| 174 | //! \brief Returns the \f$ f_1 \f$ value | ||
| 175 | ✗ | const Scalar fOne() const | |
| 176 | ✗ | { return 1.0; } | |
| 177 | |||
| 178 | //! \brief Returns the \f$ f_2 \f$ value | ||
| 179 | 5066880 | const Scalar fTwo() const | |
| 180 | { | ||
| 181 | using std::exp; | ||
| 182 | 15200640 | return 1.0 - 0.22 * exp(-1.0 * (reT() * reT() / 6.0 / 6.0)); | |
| 183 | } | ||
| 184 | |||
| 185 | //! \brief Returns the \f$ E \f$ value | ||
| 186 | 5066880 | const Scalar eValue() const | |
| 187 | { | ||
| 188 | using std::exp; | ||
| 189 | 10133760 | return -2.0 * RANSParentType::kinematicViscosity() * dissipationTilde() | |
| 190 | 5066880 | / RANSParentType::wallDistance() / RANSParentType::wallDistance() | |
| 191 | 5066880 | * exp(-0.5 * RANSParentType::yPlus()); | |
| 192 | } | ||
| 193 | |||
| 194 | protected: | ||
| 195 | Scalar turbulentKineticEnergy_ = 0.0; | ||
| 196 | Scalar dissipationTilde_ = 0.0; | ||
| 197 | Scalar storedTurbulentKineticEnergy_ = 0.0; | ||
| 198 | Scalar storedDissipationTilde_ = 0.0; | ||
| 199 | Scalar stressTensorScalarProduct_ = 0.0; | ||
| 200 | }; | ||
| 201 | |||
| 202 | } // end namespace Dumux | ||
| 203 | |||
| 204 | #endif | ||
| 205 |