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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 TwoPOneCModel | ||
| 10 | * \copydoc Dumux::TwoPOneCDarcysLaw | ||
| 11 | */ | ||
| 12 | |||
| 13 | #ifndef DUMUX_2P1C_SPURIOUS_FLUX_BLOCKING_DARCYS_LAW_HH | ||
| 14 | #define DUMUX_2P1C_SPURIOUS_FLUX_BLOCKING_DARCYS_LAW_HH | ||
| 15 | |||
| 16 | #include <dumux/common/math.hh> | ||
| 17 | #include <dumux/common/parameters.hh> | ||
| 18 | #include <dumux/common/properties.hh> | ||
| 19 | #include <dumux/discretization/method.hh> | ||
| 20 | #include <dumux/flux/darcyslaw.hh> | ||
| 21 | |||
| 22 | namespace Dumux { | ||
| 23 | |||
| 24 | namespace Properties { | ||
| 25 | template<class TypeTag, class MyTypeTag> | ||
| 26 | struct UseBlockingOfSpuriousFlow { using type = UndefinedProperty; }; //!< Determines whether blocking of spurious flow is used or not. | ||
| 27 | } | ||
| 28 | |||
| 29 | /*! | ||
| 30 | * \ingroup TwoPOneCModel | ||
| 31 | * \brief Specialization of Darcy's Law for the two-phase one-component model, including a the possibility <BR> | ||
| 32 | * to block spurious fluxes of cold water into the steam zone, which can improve the model's convergence | ||
| 33 | * behavior (Gudbjerg et al., 2005) \cite gudbjerg2004. | ||
| 34 | */ | ||
| 35 | template <class TypeTag> | ||
| 36 | class TwoPOneCDarcysLaw : public DarcysLaw<TypeTag> | ||
| 37 | { | ||
| 38 | using ParentType = DarcysLaw<TypeTag>; | ||
| 39 | using Problem = GetPropType<TypeTag, Properties::Problem>; | ||
| 40 | using FVElementGeometry = typename GetPropType<TypeTag, Properties::GridGeometry>::LocalView; | ||
| 41 | using SubControlVolume = typename FVElementGeometry::SubControlVolume; | ||
| 42 | using SubControlVolumeFace = typename FVElementGeometry::SubControlVolumeFace; | ||
| 43 | using GridFluxVariablesCache = GetPropType<TypeTag, Properties::GridFluxVariablesCache>; | ||
| 44 | using ElemFluxVarCache = typename GridFluxVariablesCache::LocalView; | ||
| 45 | using ElementVolumeVariables = typename GetPropType<TypeTag, Properties::GridVolumeVariables>::LocalView; | ||
| 46 | using VolumeVariables = GetPropType<TypeTag, Properties::VolumeVariables>; | ||
| 47 | using GridView = typename GetPropType<TypeTag, Properties::GridGeometry>::GridView; | ||
| 48 | using Scalar = GetPropType<TypeTag, Properties::Scalar>; | ||
| 49 | using FluidSystem = GetPropType<TypeTag, Properties::FluidSystem>; | ||
| 50 | using Indices = typename GetPropType<TypeTag, Properties::ModelTraits>::Indices; | ||
| 51 | using Element = typename GridView::template Codim<0>::Entity; | ||
| 52 | using CoordScalar = typename GridView::ctype; | ||
| 53 | |||
| 54 | enum { dim = GridView::dimension}; | ||
| 55 | enum { dimWorld = GridView::dimensionworld}; | ||
| 56 | |||
| 57 | // copy some indices for convenience | ||
| 58 | enum { | ||
| 59 | // phase indices | ||
| 60 | liquidPhaseIdx = FluidSystem::liquidPhaseIdx, | ||
| 61 | gasPhaseIdx = FluidSystem::gasPhaseIdx, | ||
| 62 | }; | ||
| 63 | |||
| 64 | using DimWorldMatrix = Dune::FieldMatrix<Scalar, dimWorld, dimWorld>; | ||
| 65 | using GlobalPosition = Dune::FieldVector<Scalar, dimWorld>; | ||
| 66 | |||
| 67 | public: | ||
| 68 | |||
| 69 | //! Compute the Darcy flux and use a blocking factor, if specified. | ||
| 70 | 5217240 | static Scalar flux(const Problem& problem, | |
| 71 | const Element& element, | ||
| 72 | const FVElementGeometry& fvGeometry, | ||
| 73 | const ElementVolumeVariables& elemVolVars, | ||
| 74 | const SubControlVolumeFace& scvf, | ||
| 75 | const int phaseIdx, | ||
| 76 | const ElemFluxVarCache& elemFluxVarCache) | ||
| 77 | { | ||
| 78 | 5217240 | const Scalar flux = ParentType::flux(problem, element, fvGeometry, elemVolVars, scvf, phaseIdx, elemFluxVarCache); | |
| 79 | |||
| 80 | // only block wetting-phase (i.e. liquid water) fluxes | ||
| 81 |
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5217240 | if((!getPropValue<TypeTag, Properties::UseBlockingOfSpuriousFlow>()) || phaseIdx != liquidPhaseIdx) |
| 82 | return flux; | ||
| 83 | |||
| 84 |
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5217240 | const auto& insideVolVars = elemVolVars[scvf.insideScvIdx()]; |
| 85 |
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4605240 | const auto& outsideVolVars = elemVolVars[scvf.outsideScvIdx()]; |
| 86 | |||
| 87 |
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5217240 | const Scalar factor = std::signbit(flux) ? factor_(outsideVolVars, insideVolVars, phaseIdx) : |
| 88 | 1525162 | factor_(insideVolVars, outsideVolVars, phaseIdx); | |
| 89 | |||
| 90 | 2608620 | return flux * factor; | |
| 91 | } | ||
| 92 | |||
| 93 | private: | ||
| 94 | /*! | ||
| 95 | * \brief Calculates the blocking factor which prevents spurious cold water fluxes into the steam zone (Gudbjerg et al., 2005) \cite gudbjerg2004 <BR> | ||
| 96 | * | ||
| 97 | * \param up The upstream volume variables | ||
| 98 | * \param dn The downstream volume variables | ||
| 99 | * \param phaseIdx The index of the fluid phase | ||
| 100 | */ | ||
| 101 | static Scalar factor_(const VolumeVariables &up, const VolumeVariables &dn,const int phaseIdx) | ||
| 102 | { | ||
| 103 | 2608620 | Scalar factor = 1.0; | |
| 104 | |||
| 105 |
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2608620 | const Scalar tDn = dn.temperature(); //temperature of the downstream SCV (where the cold water is potentially intruding into a steam zone) |
| 106 |
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2608620 | const Scalar tUp = up.temperature(); //temperature of the upstream SCV |
| 107 | |||
| 108 |
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2608620 | const Scalar sgDn = dn.saturation(gasPhaseIdx); //gas phase saturation of the downstream SCV |
| 109 |
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2608620 | const Scalar sgUp = up.saturation(gasPhaseIdx); //gas phase saturation of the upstream SCV |
| 110 | |||
| 111 | 2608620 | bool upIsNotSteam = false; | |
| 112 | 2608620 | bool downIsSteam = false; | |
| 113 | 2608620 | bool spuriousFlow = false; | |
| 114 | |||
| 115 |
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2608620 | if(sgUp <= 1e-5) |
| 116 | 2601489 | upIsNotSteam = true; | |
| 117 | |||
| 118 |
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2608620 | if(sgDn > 1e-5) |
| 119 | 3753 | downIsSteam = true; | |
| 120 | |||
| 121 |
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2608620 | if(upIsNotSteam && downIsSteam && tDn > tUp && phaseIdx == liquidPhaseIdx) |
| 122 | 1593 | spuriousFlow = true; | |
| 123 | |||
| 124 | if(spuriousFlow) | ||
| 125 | { | ||
| 126 | 1593 | Scalar deltaT = tDn - tUp; | |
| 127 | |||
| 128 |
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1593 | if((deltaT) > 15 ) |
| 129 | factor = 0.0 ; | ||
| 130 | |||
| 131 | else | ||
| 132 | 435 | factor = 1-(deltaT/15); | |
| 133 | } | ||
| 134 | return factor; | ||
| 135 | } | ||
| 136 | }; | ||
| 137 | |||
| 138 | } // end namespace Dumux | ||
| 139 | |||
| 140 | #endif | ||
| 141 |