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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::NavierStokesResidualImpl | ||
| 11 | */ | ||
| 12 | #ifndef DUMUX_NAVIERSTOKES_MOMENTUM_CVFE_LOCAL_RESIDUAL_HH | ||
| 13 | #define DUMUX_NAVIERSTOKES_MOMENTUM_CVFE_LOCAL_RESIDUAL_HH | ||
| 14 | |||
| 15 | #include <dune/common/hybridutilities.hh> | ||
| 16 | |||
| 17 | #include <dumux/common/properties.hh> | ||
| 18 | #include <dumux/common/numeqvector.hh> | ||
| 19 | |||
| 20 | #include <dumux/discretization/extrusion.hh> | ||
| 21 | #include <dumux/discretization/method.hh> | ||
| 22 | #include <dumux/assembly/cvfelocalresidual.hh> | ||
| 23 | |||
| 24 | #include <dumux/freeflow/navierstokes/momentum/cvfe/flux.hh> | ||
| 25 | |||
| 26 | namespace Dumux { | ||
| 27 | |||
| 28 | /*! | ||
| 29 | * \ingroup NavierStokesModel | ||
| 30 | * \brief Element-wise calculation of the Navier-Stokes residual for models using CVFE discretizations | ||
| 31 | */ | ||
| 32 | template<class TypeTag> | ||
| 33 | class NavierStokesMomentumCVFELocalResidual | ||
| 34 | : public CVFELocalResidual<TypeTag> | ||
| 35 | { | ||
| 36 | using ParentType = CVFELocalResidual<TypeTag>; | ||
| 37 | |||
| 38 | using GridVariables = GetPropType<TypeTag, Properties::GridVariables>; | ||
| 39 | |||
| 40 | using GridVolumeVariables = typename GridVariables::GridVolumeVariables; | ||
| 41 | using ElementVolumeVariables = typename GridVolumeVariables::LocalView; | ||
| 42 | using VolumeVariables = typename GridVolumeVariables::VolumeVariables; | ||
| 43 | |||
| 44 | using GridFluxVariablesCache = typename GridVariables::GridFluxVariablesCache; | ||
| 45 | using ElementFluxVariablesCache = typename GridFluxVariablesCache::LocalView; | ||
| 46 | |||
| 47 | using Scalar = GetPropType<TypeTag, Properties::Scalar>; | ||
| 48 | using Problem = GetPropType<TypeTag, Properties::Problem>; | ||
| 49 | using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>; | ||
| 50 | using FVElementGeometry = typename GridGeometry::LocalView; | ||
| 51 | using SubControlVolume = typename FVElementGeometry::SubControlVolume; | ||
| 52 | using SubControlVolumeFace = typename FVElementGeometry::SubControlVolumeFace; | ||
| 53 | using GridView = typename GridGeometry::GridView; | ||
| 54 | using Element = typename GridView::template Codim<0>::Entity; | ||
| 55 | using ElementBoundaryTypes = GetPropType<TypeTag, Properties::ElementBoundaryTypes>; | ||
| 56 | using Indices = typename GetPropType<TypeTag, Properties::ModelTraits>::Indices; | ||
| 57 | using PrimaryVariables = GetPropType<TypeTag, Properties::PrimaryVariables>; | ||
| 58 | using NumEqVector = Dumux::NumEqVector<PrimaryVariables>; | ||
| 59 | |||
| 60 | using Extrusion = Extrusion_t<GridGeometry>; | ||
| 61 | |||
| 62 | using ModelTraits = GetPropType<TypeTag, Properties::ModelTraits>; | ||
| 63 | |||
| 64 | static constexpr auto dim = GridView::dimension; | ||
| 65 | |||
| 66 | using FluxContext = NavierStokesMomentumFluxContext<Problem, FVElementGeometry, ElementVolumeVariables, ElementFluxVariablesCache>; | ||
| 67 | using FluxHelper = NavierStokesMomentumFluxCVFE<GridGeometry, NumEqVector>; | ||
| 68 | |||
| 69 | public: | ||
| 70 | //! Use the parent type's constructor | ||
| 71 |
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1028247 | using ParentType::ParentType; |
| 72 | |||
| 73 | /*! | ||
| 74 | * \brief Calculate the storage term of the equation | ||
| 75 | * | ||
| 76 | * \param problem The problem to solve | ||
| 77 | * \param fvGeometry The finite-volume geometry of the element | ||
| 78 | * \param scv The sub-control volume over which we integrate the storage term | ||
| 79 | * \param volVars The volume variables associated with the scv | ||
| 80 | * \param isPreviousStorage If set to true, the storage term is evaluated on the previous time level. | ||
| 81 | * | ||
| 82 | */ | ||
| 83 | ✗ | NumEqVector computeStorage(const Problem& problem, | |
| 84 | const FVElementGeometry& fvGeometry, | ||
| 85 | const SubControlVolume& scv, | ||
| 86 | const VolumeVariables& volVars, | ||
| 87 | const bool isPreviousStorage) const | ||
| 88 | { | ||
| 89 | ✗ | return problem.density(fvGeometry.element(), fvGeometry, scv, isPreviousStorage) * volVars.velocity(); | |
| 90 | } | ||
| 91 | |||
| 92 | /*! | ||
| 93 | * \brief Calculate the source term of the equation | ||
| 94 | * | ||
| 95 | * \param problem The problem to solve | ||
| 96 | * \param element The DUNE Codim<0> entity for which the residual | ||
| 97 | * ought to be calculated | ||
| 98 | * \param fvGeometry The finite-volume geometry of the element | ||
| 99 | * \param elemVolVars The volume variables associated with the element stencil | ||
| 100 | * \param scv The sub-control volume over which we integrate the source term | ||
| 101 | * | ||
| 102 | */ | ||
| 103 | 32455694 | NumEqVector computeSource(const Problem& problem, | |
| 104 | const Element& element, | ||
| 105 | const FVElementGeometry& fvGeometry, | ||
| 106 | const ElementVolumeVariables& elemVolVars, | ||
| 107 | const SubControlVolume& scv) const | ||
| 108 | { | ||
| 109 | 32455694 | NumEqVector source = ParentType::computeSource(problem, element, fvGeometry, elemVolVars, scv); | |
| 110 | |||
| 111 | // add rho*g (note that gravity might be zero in case it's disabled in the problem) | ||
| 112 |
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70888054 | source += problem.density(element, fvGeometry, scv) * problem.gravity(); |
| 113 | |||
| 114 | // Axisymmetric problems in 2D feature an extra source term arising from the transformation to cylindrical coordinates. | ||
| 115 | // See Ferziger/Peric: Computational methods for Fluid Dynamics (2020) | ||
| 116 | // https://doi.org/10.1007/978-3-319-99693-6 | ||
| 117 | // Chapter 9.9 and Eq. (9.81) and comment on finite volume methods | ||
| 118 | if constexpr (dim == 2 && isRotationalExtrusion<Extrusion>) | ||
| 119 | { | ||
| 120 | // the radius with respect to the rotation axis | ||
| 121 | 3822000 | const auto r = scv.center()[Extrusion::radialAxis] - fvGeometry.gridGeometry().bBoxMin()[Extrusion::radialAxis]; | |
| 122 | |||
| 123 | // The velocity term is new with respect to Cartesian coordinates and handled below as a source term | ||
| 124 | // It only enters the balance of the momentum balance in radial direction | ||
| 125 | 3822000 | source[Extrusion::radialAxis] += -2.0*problem.effectiveViscosity(element, fvGeometry, scv) | |
| 126 | 3822000 | * elemVolVars[scv].velocity(Extrusion::radialAxis) / (r*r); | |
| 127 | |||
| 128 | // Pressure term (needed because we incorporate pressure in terms of a surface integral). | ||
| 129 | // grad(p) becomes div(pI) + (p/r)*n_r in cylindrical coordinates. The second term | ||
| 130 | // is new with respect to Cartesian coordinates and handled below as a source term. | ||
| 131 | 3822000 | source[Extrusion::radialAxis] += problem.pressure(element, fvGeometry, scv)/r; | |
| 132 | } | ||
| 133 | |||
| 134 | 32455694 | return source; | |
| 135 | } | ||
| 136 | |||
| 137 | /*! | ||
| 138 | * \brief Evaluates the mass flux over a face of a sub control volume. | ||
| 139 | * | ||
| 140 | * \param problem The problem | ||
| 141 | * \param element The element | ||
| 142 | * \param fvGeometry The finite volume geometry context | ||
| 143 | * \param elemVolVars The volume variables for all flux stencil elements | ||
| 144 | * \param scvf The sub control volume face to compute the flux on | ||
| 145 | * \param elemFluxVarsCache The cache related to flux computation | ||
| 146 | */ | ||
| 147 | 46880908 | NumEqVector computeFlux(const Problem& problem, | |
| 148 | const Element& element, | ||
| 149 | const FVElementGeometry& fvGeometry, | ||
| 150 | const ElementVolumeVariables& elemVolVars, | ||
| 151 | const SubControlVolumeFace& scvf, | ||
| 152 | const ElementFluxVariablesCache& elemFluxVarsCache) const | ||
| 153 | { | ||
| 154 | 46880908 | FluxContext context(problem, fvGeometry, elemVolVars, elemFluxVarsCache, scvf); | |
| 155 | FluxHelper fluxHelper; | ||
| 156 | |||
| 157 | 46880908 | NumEqVector flux(0.0); | |
| 158 | 46880908 | flux += fluxHelper.advectiveMomentumFlux(context); | |
| 159 | 46880908 | flux += fluxHelper.diffusiveMomentumFlux(context); | |
| 160 | 46880908 | flux += fluxHelper.pressureContribution(context); | |
| 161 | 46880908 | return flux; | |
| 162 | } | ||
| 163 | }; | ||
| 164 | |||
| 165 | } // end namespace Dumux | ||
| 166 | |||
| 167 | #endif | ||
| 168 |