GCC Code Coverage Report


Directory: ../../../builds/dumux-repositories/
File: /builds/dumux-repositories/dumux/dumux/flux/ccmpfa/fourierslaw.hh
Date: 2024-09-21 20:52:54
Exec Total Coverage
Lines: 6 28 21.4%
Functions: 0 41 0.0%
Branches: 0 6 0.0%

Line Branch Exec Source
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 CCMpfaFlux
10 * \brief Fourier's law for cell-centered finite volume schemes with multi-point flux approximation
11 */
12 #ifndef DUMUX_DISCRETIZATION_CC_MPFA_FOURIERS_LAW_HH
13 #define DUMUX_DISCRETIZATION_CC_MPFA_FOURIERS_LAW_HH
14
15 #include <dune/common/dynvector.hh>
16 #include <dune/common/dynmatrix.hh>
17
18 #include <dumux/common/properties.hh>
19 #include <dumux/discretization/method.hh>
20
21 namespace Dumux {
22
23 //! forward declaration of the method-specific implementation
24 template<class TypeTag, class DiscretizationMethod>
25 class FouriersLawImplementation;
26
27 /*!
28 * \ingroup CCMpfaFlux
29 * \brief Fourier's law for cell-centered finite volume schemes with multi-point flux approximation
30 */
31 template <class TypeTag>
32 class FouriersLawImplementation<TypeTag, DiscretizationMethods::CCMpfa>
33 {
34 using Scalar = GetPropType<TypeTag, Properties::Scalar>;
35 using Problem = GetPropType<TypeTag, Properties::Problem>;
36 using GridView = typename GetPropType<TypeTag, Properties::GridGeometry>::GridView;
37 using Element = typename GridView::template Codim<0>::Entity;
38
39 static constexpr int dim = GridView::dimension;
40 static constexpr int dimWorld = GridView::dimensionworld;
41
42 using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>;
43 using FVElementGeometry = typename GridGeometry::LocalView;
44 using SubControlVolumeFace = typename FVElementGeometry::SubControlVolumeFace;
45 using ElementVolumeVariables = typename GetPropType<TypeTag, Properties::GridVolumeVariables>::LocalView;
46 using GridFluxVariablesCache = GetPropType<TypeTag, Properties::GridFluxVariablesCache>;
47 using ElementFluxVarsCache = typename GridFluxVariablesCache::LocalView;
48 using FluxVariablesCache = typename GridFluxVariablesCache::FluxVariablesCache;
49
50 //! Class that fills the cache corresponding to mpfa Darcy's Law
51 class MpfaFouriersLawCacheFiller
52 {
53 public:
54 //! Function to fill an MpfaDarcysLawCache of a given scvf
55 //! This interface has to be met by any cache filler class for heat conduction quantities
56 template<class FluxVariablesCacheFiller>
57 static void fill(FluxVariablesCache& scvfFluxVarsCache,
58 const Problem& problem,
59 const Element& element,
60 const FVElementGeometry& fvGeometry,
61 const ElementVolumeVariables& elemVolVars,
62 const SubControlVolumeFace& scvf,
63 const FluxVariablesCacheFiller& fluxVarsCacheFiller)
64 {
65 // get interaction volume from the flux vars cache filler & update the cache
66 20111872 if (fvGeometry.gridGeometry().vertexUsesSecondaryInteractionVolume(scvf.vertexIndex()))
67 scvfFluxVarsCache.updateHeatConduction(fluxVarsCacheFiller.secondaryInteractionVolume(),
68 fluxVarsCacheFiller.secondaryIvLocalFaceData(),
69 fluxVarsCacheFiller.secondaryIvDataHandle());
70 else
71 20111872 scvfFluxVarsCache.updateHeatConduction(fluxVarsCacheFiller.primaryInteractionVolume(),
72 fluxVarsCacheFiller.primaryIvLocalFaceData(),
73 fluxVarsCacheFiller.primaryIvDataHandle());
74 }
75 };
76
77 //! The cache used in conjunction with the mpfa Fourier's Law
78 class MpfaFouriersLawCache
79 {
80 using DualGridNodalIndexSet = GetPropType<TypeTag, Properties::DualGridNodalIndexSet>;
81 using Stencil = typename DualGridNodalIndexSet::NodalGridStencilType;
82
83 static constexpr bool considerSecondaryIVs = GridGeometry::MpfaHelper::considerSecondaryIVs();
84 using PrimaryDataHandle = typename ElementFluxVarsCache::PrimaryIvDataHandle::HeatConductionHandle;
85 using SecondaryDataHandle = typename ElementFluxVarsCache::SecondaryIvDataHandle::HeatConductionHandle;
86
87 //! sets the pointer to the data handle (overload for secondary data handles)
88 template< bool doSecondary = considerSecondaryIVs, std::enable_if_t<doSecondary, int> = 0 >
89 void setHandlePointer_(const SecondaryDataHandle& dataHandle)
90 { secondaryHandlePtr_ = &dataHandle; }
91
92 //! sets the pointer to the data handle (overload for primary data handles)
93 void setHandlePointer_(const PrimaryDataHandle& dataHandle)
94 20111872 { primaryHandlePtr_ = &dataHandle; }
95
96 public:
97 // export filler type
98 using Filler = MpfaFouriersLawCacheFiller;
99
100 /*!
101 * \brief Update cached objects (transmissibilities).
102 * This is used for updates with primary interaction volumes.
103 *
104 * \param iv The interaction volume this scvf is embedded in
105 * \param localFaceData iv-local info on this scvf
106 * \param dataHandle Transmissibility matrix & gravity data of this iv
107 */
108 template<class IV, class LocalFaceData, class DataHandle>
109 void updateHeatConduction(const IV& iv,
110 const LocalFaceData& localFaceData,
111 const DataHandle& dataHandle)
112 {
113 20111872 switchFluxSign_ = localFaceData.isOutsideFace();
114 20111872 stencil_ = &iv.stencil();
115 40223744 setHandlePointer_(dataHandle.heatConductionHandle());
116 }
117
118 //! The stencil corresponding to the transmissibilities (primary type)
119 const Stencil& heatConductionStencil() const { return *stencil_; }
120
121 //! The corresponding data handles
122 const PrimaryDataHandle& heatConductionPrimaryDataHandle() const { return *primaryHandlePtr_; }
123 const SecondaryDataHandle& heatConductionSecondaryDataHandle() const { return *secondaryHandlePtr_; }
124
125 //! Returns whether or not this scvf is an "outside" face in the scope of the iv.
126 bool heatConductionSwitchFluxSign() const { return switchFluxSign_; }
127
128 private:
129 bool switchFluxSign_;
130
131 //! pointers to the corresponding iv-data handles
132 const PrimaryDataHandle* primaryHandlePtr_;
133 const SecondaryDataHandle* secondaryHandlePtr_;
134
135 //! The stencil, i.e. the grid indices j
136 const Stencil* stencil_;
137 };
138
139 public:
140 using DiscretizationMethod = DiscretizationMethods::CCMpfa;
141 // state the discretization method this implementation belongs to
142 static constexpr DiscretizationMethod discMethod{};
143
144 // state the type for the corresponding cache and its filler
145 using Cache = MpfaFouriersLawCache;
146
147 /*!
148 * \brief Returns the heat flux within the porous medium
149 * (in J/s) across the given sub-control volume face.
150 * \note This law assumes thermal equilibrium between the fluid
151 * and solid phases, and uses an effective thermal conductivity
152 * for the overall aggregate.
153 */
154 static Scalar flux(const Problem& problem,
155 const Element& element,
156 const FVElementGeometry& fvGeometry,
157 const ElementVolumeVariables& elemVolVars,
158 const SubControlVolumeFace& scvf,
159 const ElementFluxVarsCache& elemFluxVarsCache)
160 {
161 const auto& fluxVarsCache = elemFluxVarsCache[scvf];
162
163 // forward to the private function taking the iv data handle
164 if (fluxVarsCache.usesSecondaryIv())
165 return flux_(problem, fluxVarsCache, fluxVarsCache.heatConductionSecondaryDataHandle());
166 else
167 return flux_(problem, fluxVarsCache, fluxVarsCache.heatConductionPrimaryDataHandle());
168 }
169
170 private:
171 template< class Problem, class FluxVarsCache, class DataHandle >
172 static Scalar flux_(const Problem& problem,
173 const FluxVarsCache& cache,
174 const DataHandle& dataHandle)
175 {
176 const bool switchSign = cache.heatConductionSwitchFluxSign();
177
178 const auto localFaceIdx = cache.ivLocalFaceIndex();
179 const auto idxInOutside = cache.indexInOutsideFaces();
180 const auto& Tj = dataHandle.uj();
181 const auto& tij = dim == dimWorld ? dataHandle.T()[localFaceIdx]
182 : (!switchSign ? dataHandle.T()[localFaceIdx]
183 : dataHandle.tijOutside()[localFaceIdx][idxInOutside]);
184 Scalar scvfFlux = tij*Tj;
185
186 // switch the sign if necessary
187 if (switchSign)
188 scvfFlux *= -1.0;
189
190 return scvfFlux;
191 }
192 };
193
194 } // end namespace Dumux
195
196 #endif
197