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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 Experimental | ||
| 10 | * \ingroup Assembly | ||
| 11 | * \brief A local operator wrapper for multi-stage time stepping schemes | ||
| 12 | */ | ||
| 13 | #ifndef DUMUX_EXPERIMENTAL_MULTISTAGE_FV_LOCAL_OPERATOR_HH | ||
| 14 | #define DUMUX_EXPERIMENTAL_MULTISTAGE_FV_LOCAL_OPERATOR_HH | ||
| 15 | |||
| 16 | #include <cmath> | ||
| 17 | #include <dumux/discretization/extrusion.hh> | ||
| 18 | |||
| 19 | namespace Dumux::Experimental { | ||
| 20 | |||
| 21 | template<class LocalOperator> | ||
| 22 | class MultiStageFVLocalOperator | ||
| 23 | { | ||
| 24 | using ElementOperatorResultVector = typename LocalOperator::ElementResidualVector; | ||
| 25 | public: | ||
| 26 | // compatibility | ||
| 27 | using ElementResidualVector = ElementOperatorResultVector; | ||
| 28 | |||
| 29 |
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10095508 | MultiStageFVLocalOperator(const LocalOperator& op) |
| 30 | 5069012 | : op_(op) | |
| 31 | 5069012 | , spatialWeight_(1.0) | |
| 32 |
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5069012 | , temporalWeight_(1.0) |
| 33 | {} | ||
| 34 | |||
| 35 | // discretization-agnostic interface (apart from FV) | ||
| 36 | template<class FVGeometry, class ElemVolVars> | ||
| 37 |
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21294848 | ElementOperatorResultVector evalStorage( |
| 38 | const FVGeometry& fvGeometry, | ||
| 39 | const ElemVolVars& elemVolVars | ||
| 40 | ) const { | ||
| 41 |
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21294848 | ElementOperatorResultVector result(fvGeometry.numScv()); |
| 42 | |||
| 43 |
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21294848 | if (std::abs(temporalWeight_) > 1e-6) |
| 44 | { | ||
| 45 |
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44545280 | for (const auto& scv : scvs(fvGeometry)) |
| 46 | 46500864 | result[scv.localDofIndex()] += | |
| 47 | 23995136 | op_.computeStorage(op_.problem(), scv, elemVolVars[scv]) | |
| 48 | 46500864 | * elemVolVars[scv].extrusionFactor() | |
| 49 | 46500864 | * Extrusion_t<typename FVGeometry::GridGeometry>::volume(fvGeometry, scv) | |
| 50 | 69751296 | * temporalWeight_; | |
| 51 | } | ||
| 52 | |||
| 53 | 21294848 | return result; | |
| 54 | } | ||
| 55 | |||
| 56 | // discretization-agnostic interface (apart from FV) | ||
| 57 | template<class FVGeometry, class ElemVolVars, class ElemFluxVars, class ElemBCTypes> | ||
| 58 |
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11313024 | ElementOperatorResultVector evalFluxAndSource( |
| 59 | const typename FVGeometry::Element&, // not needed, here for compatibility | ||
| 60 | const FVGeometry& fvGeometry, | ||
| 61 | const ElemVolVars& elemVolVars, | ||
| 62 | const ElemFluxVars& elemFluxVarsCache, | ||
| 63 | const ElemBCTypes& bcTypes | ||
| 64 | ) const { | ||
| 65 |
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11313024 | ElementOperatorResultVector result(fvGeometry.numScv()); |
| 66 |
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11313024 | if (std::abs(spatialWeight_) > 1e-6) |
| 67 | { | ||
| 68 | 11313024 | result = op_.evalFluxAndSource(fvGeometry.element(), fvGeometry, elemVolVars, elemFluxVarsCache, bcTypes); | |
| 69 |
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24726784 | for (auto& r : result) |
| 70 | 13413760 | r *= spatialWeight_; | |
| 71 | } | ||
| 72 | |||
| 73 | 11313024 | return result; | |
| 74 | } | ||
| 75 | |||
| 76 | // interface allowing for optimization when computing the cell-centered finite volume Jacobian | ||
| 77 | template<class Problem, class FVGeometry, class ElemVolVars, class ElemFluxVars> | ||
| 78 | 1612896 | auto evalFlux( | |
| 79 | const Problem&, // not needed | ||
| 80 | const typename FVGeometry::Element& element, // can be neighbor | ||
| 81 | const FVGeometry& fvGeometry, | ||
| 82 | const ElemVolVars& elemVolVars, | ||
| 83 | const ElemFluxVars& elemFluxVarsCache, | ||
| 84 | const typename FVGeometry::SubControlVolumeFace& scvf | ||
| 85 | ) const { | ||
| 86 | using NumEqVector = std::decay_t<decltype(op_.evalFlux(op_.problem(), element, fvGeometry, elemVolVars, elemFluxVarsCache, scvf))>; | ||
| 87 | 1612896 | NumEqVector result(0.0); | |
| 88 |
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1612896 | if (std::abs(spatialWeight_) > 1e-6) |
| 89 | { | ||
| 90 | 1612896 | result = op_.evalFlux(op_.problem(), element, fvGeometry, elemVolVars, elemFluxVarsCache, scvf); | |
| 91 | 1612896 | result *= spatialWeight_; | |
| 92 | } | ||
| 93 | 1612896 | return result; | |
| 94 | } | ||
| 95 | |||
| 96 |
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15168448 | void spatialWeight(double w) { spatialWeight_ = w; } |
| 97 |
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10090752 | double spatialWeight() const { return spatialWeight_; } |
| 98 | |||
| 99 |
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15168448 | void temporalWeight(double w) { temporalWeight_ = w; } |
| 100 | double temporalWeight() const { return temporalWeight_; } | ||
| 101 | |||
| 102 | const auto& problem() const | ||
| 103 | { return op_.problem(); } | ||
| 104 | |||
| 105 | // some old interface (TODO: get rid of this) | ||
| 106 | // (stationary is also the wrong word by the way, systems with zero | ||
| 107 | // time derivative are in a steady-state but not necessarily stationary/not-moving at all) | ||
| 108 | // can we decide this somehow from the temporal weight? | ||
| 109 | bool isStationary() const | ||
| 110 | { return false; } | ||
| 111 | |||
| 112 | private: | ||
| 113 | LocalOperator op_; | ||
| 114 | double spatialWeight_, temporalWeight_; // TODO: get correct type | ||
| 115 | }; | ||
| 116 | |||
| 117 | } // end namespace Dumux::Experimental | ||
| 118 | |||
| 119 | #endif | ||
| 120 |