GCC Code Coverage Report

Directory: ../../../builds/dumux-repositories/
File: /builds/dumux-repositories/dumux/dumux/multidomain/boundary/stokesdarcy/couplingmapper.hh
Date: 2024-09-21 20:52:54
Exec Total Coverage
Lines: 36 37 97.3%
Functions: 6 6 100.0%
Branches: 61 114 53.5%
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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 StokesDarcyCoupling
10 * \copydoc Dumux::StokesDarcyCouplingMapper
11 */
12
13 #ifndef DUMUX_STOKES_DARCY_COUPLINGMAPPER_HH
14 #define DUMUX_STOKES_DARCY_COUPLINGMAPPER_HH
15
16 #include <type_traits>
17 #include <unordered_map>
18 #include <vector>
19
20 #include <dune/common/exceptions.hh>
21 #include <dumux/discretization/method.hh>
22
23 namespace Dumux {
24
25 /*!
26 * \ingroup StokesDarcyCoupling
27 * \brief Coupling mapper for Stokes and Darcy domains with equal dimension.
28 */
29 68 class StokesDarcyCouplingMapper
30 {
31 struct ElementMapInfo
32 {
33 std::size_t eIdx;
34 std::size_t scvfIdx;
35 std::size_t flipScvfIdx;
36 };
37
38 public:
39
40 /*!
41 * \brief Main update routine
42 */
43 template<class CouplingManager, class Stencils>
44 17 void computeCouplingMapsAndStencils(const CouplingManager& couplingManager,
45 Stencils& darcyToStokesCellCenterStencils,
46 Stencils& darcyToStokesFaceStencils,
47 Stencils& stokesCellCenterToDarcyStencils,
48 Stencils& stokesFaceToDarcyStencils)
49 {
50
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 17 const auto& stokesFvGridGeometry = couplingManager.problem(CouplingManager::stokesIdx).gridGeometry();
51
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 17 const auto& darcyFvGridGeometry = couplingManager.problem(CouplingManager::darcyIdx).gridGeometry();
52
53 static_assert(std::decay_t<decltype(stokesFvGridGeometry)>::discMethod == DiscretizationMethods::staggered,
54 "The free flow domain must use the staggered discretization");
55
56 static_assert(std::decay_t<decltype(darcyFvGridGeometry)>::discMethod == DiscretizationMethods::cctpfa,
57 "The Darcy domain must use the CCTpfa discretization");
58
59 17 isCoupledDarcyScvf_.resize(darcyFvGridGeometry.numScvf(), false);
60
61 17 const auto& stokesGridView = stokesFvGridGeometry.gridView();
62 17 auto stokesFvGeometry = localView(stokesFvGridGeometry);
63
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 142129 for (const auto& stokesElement : elements(stokesGridView))
64 {
65 71056 stokesFvGeometry.bindElement(stokesElement);
66
67
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 426336 for (const auto& scvf : scvfs(stokesFvGeometry))
68 {
69 // skip the DOF if it is not on the boundary
70
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 284224 if (!scvf.boundary())
71 283468 continue;
72
73 // get element intersecting with the scvf center
74 // for robustness, add epsilon in unit outer normal direction
75 12224 const auto eps = (scvf.center() - stokesElement.geometry().center()).two_norm()*1e-8;
76 6112 auto globalPos = scvf.center(); globalPos.axpy(eps, scvf.unitOuterNormal());
77
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 6868 const auto darcyElementIdx = intersectingEntities(globalPos, darcyFvGridGeometry.boundingBoxTree());
78
79 // skip if no intersection was found
80
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 6112 if (darcyElementIdx.empty())
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 2300 continue;
82
83 // sanity check
84
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 1512 if (darcyElementIdx.size() > 1)
85 ✗ DUNE_THROW(Dune::InvalidStateException, "Stokes face dof should only intersect with one Darcy element");
86
87 1512 const auto stokesElementIdx = stokesFvGridGeometry.elementMapper().index(stokesElement);
88
89 756 const auto darcyDofIdx = darcyElementIdx[0];
90
91
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 1512 stokesFaceToDarcyStencils[scvf.dofIndex()].push_back(darcyDofIdx);
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 756 stokesCellCenterToDarcyStencils[stokesElementIdx].push_back(darcyDofIdx);
93
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 756 darcyToStokesFaceStencils[darcyElementIdx[0]].push_back(scvf.dofIndex());
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 756 darcyToStokesCellCenterStencils[darcyElementIdx[0]].push_back(stokesElementIdx);
96
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 756 const auto& darcyElement = darcyFvGridGeometry.element(darcyElementIdx[0]);
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 3024 const auto darcyFvGeometry = localView(darcyFvGridGeometry).bindElement(darcyElement);
99
100 // find the corresponding Darcy sub control volume face
101
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 4536 for (const auto& darcyScvf : scvfs(darcyFvGeometry))
102 {
103 12096 const auto distance = (darcyScvf.center() - scvf.center()).two_norm();
104
105
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 3024 if (distance < eps)
106 {
107
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 1512 isCoupledDarcyScvf_[darcyScvf.index()] = true;
108
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 756 darcyElementToStokesElementMap_[darcyElementIdx[0]].push_back({stokesElementIdx, scvf.index(), darcyScvf.index()});
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 756 stokesElementToDarcyElementMap_[stokesElementIdx].push_back({darcyElementIdx[0], darcyScvf.index(), scvf.index()});
110 }
111 }
112 }
113 }
114 17 }
115
116 /*!
117 * \brief Returns whether a Darcy scvf is coupled to the other domain
118 */
119 bool isCoupledDarcyScvf(std::size_t darcyScvfIdx) const
120 {
121
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 906608 return isCoupledDarcyScvf_[darcyScvfIdx];
122 }
123
124 /*!
125 * \brief A map that returns all Stokes elements coupled to a Darcy element
126 */
127 const auto& darcyElementToStokesElementMap() const
128 {
129 410428 return darcyElementToStokesElementMap_;
130 }
131
132 /*!
133 * \brief A map that returns all Darcy elements coupled to a Stokes element
134 */
135 const auto& stokesElementToDarcyElementMap() const
136 {
137 848488 return stokesElementToDarcyElementMap_;
138 }
139
140 private:
141 std::unordered_map<std::size_t, std::vector<ElementMapInfo>> darcyElementToStokesElementMap_;
142 std::unordered_map<std::size_t, std::vector<ElementMapInfo>> stokesElementToDarcyElementMap_;
143
144 std::vector<bool> isCoupledDarcyScvf_;
145 };
146
147 } // end namespace Dumux
148
149 #endif
150