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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 FacetCoupling | ||
| 10 | * \brief Modified upwind scheme for models using the box scheme | ||
| 11 | * with coupling across element facets. | ||
| 12 | */ | ||
| 13 | #ifndef DUMUX_MULTIDOMAIN_FACET_BOX_UPWINDSCHEME_HH | ||
| 14 | #define DUMUX_MULTIDOMAIN_FACET_BOX_UPWINDSCHEME_HH | ||
| 15 | |||
| 16 | #include <dumux/common/parameters.hh> | ||
| 17 | #include <dumux/discretization/method.hh> | ||
| 18 | |||
| 19 | namespace Dumux { | ||
| 20 | |||
| 21 | /*! | ||
| 22 | * \ingroup FacetCoupling | ||
| 23 | * \brief The upwind scheme used for the advective fluxes. | ||
| 24 | * This is a modified scheme for models involving coupling | ||
| 25 | * with a lower-dimensional domain across the element facets. | ||
| 26 | */ | ||
| 27 | template<class GridGeometry> | ||
| 28 | class BoxFacetCouplingUpwindScheme | ||
| 29 | { | ||
| 30 | public: | ||
| 31 | // applies a simple upwind scheme to the precalculated advective flux | ||
| 32 | template<class FluxVariables, class UpwindTermFunction, class Scalar> | ||
| 33 | 25946912 | static Scalar apply(const FluxVariables& fluxVars, | |
| 34 | const UpwindTermFunction& upwindTerm, | ||
| 35 | Scalar flux, int phaseIdx) | ||
| 36 | { | ||
| 37 | // TODO: pass this from outside? | ||
| 38 |
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25946912 | static const Scalar upwindWeight = getParam<Scalar>("Flux.UpwindWeight"); |
| 39 | |||
| 40 |
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25946912 | const auto& elemVolVars = fluxVars.elemVolVars(); |
| 41 |
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25946912 | const auto& scvf = fluxVars.scvFace(); |
| 42 |
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25946912 | const auto& insideScv = fluxVars.fvGeometry().scv(scvf.insideScvIdx()); |
| 43 |
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25946912 | const auto& insideVolVars = elemVolVars[insideScv]; |
| 44 | |||
| 45 | // check if this is an interior boundary | ||
| 46 |
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25946912 | if (scvf.interiorBoundary()) |
| 47 | { | ||
| 48 | 2306944 | const auto& cm = fluxVars.problem().couplingManager(); | |
| 49 |
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2306944 | const auto& outsideVolVars = cm.getLowDimVolVars(fluxVars.element(), scvf); |
| 50 |
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2306944 | if (std::signbit(flux)) // if sign of flux is negative |
| 51 | 1482636 | return flux*(upwindWeight*upwindTerm(outsideVolVars) | |
| 52 | 1482636 | + (1.0 - upwindWeight)*upwindTerm(insideVolVars)); | |
| 53 | else | ||
| 54 | 824308 | return flux*(upwindWeight*upwindTerm(insideVolVars) | |
| 55 | 824308 | + (1.0 - upwindWeight)*upwindTerm(outsideVolVars)); | |
| 56 | } | ||
| 57 | else | ||
| 58 | { | ||
| 59 |
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23639968 | const auto& outsideScv = fluxVars.fvGeometry().scv(scvf.outsideScvIdx()); |
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23639968 | const auto& outsideVolVars = elemVolVars[outsideScv]; |
| 61 |
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23639968 | if (std::signbit(flux)) // if sign of flux is negative |
| 62 | 13001247 | return flux*(upwindWeight*upwindTerm(outsideVolVars) | |
| 63 | 13001247 | + (1.0 - upwindWeight)*upwindTerm(insideVolVars)); | |
| 64 | else | ||
| 65 | 10638721 | return flux*(upwindWeight*upwindTerm(insideVolVars) | |
| 66 | 10638721 | + (1.0 - upwindWeight)*upwindTerm(outsideVolVars)); | |
| 67 | } | ||
| 68 | } | ||
| 69 | }; | ||
| 70 | |||
| 71 | } // end namespace Dumux | ||
| 72 | |||
| 73 | #endif | ||
| 74 |