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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 TwoPNCTests | ||
| 10 | * \brief Definition of the spatial parameters for water management in PEM fuel cells. | ||
| 11 | */ | ||
| 12 | |||
| 13 | #ifndef DUMUX_FUELCELL_SPATIAL_PARAMS_HH | ||
| 14 | #define DUMUX_FUELCELL_SPATIAL_PARAMS_HH | ||
| 15 | |||
| 16 | #include <dumux/porousmediumflow/properties.hh> | ||
| 17 | #include <dumux/porousmediumflow/fvspatialparamsmp.hh> | ||
| 18 | #include <dumux/material/fluidmatrixinteractions/2p/vangenuchten.hh> | ||
| 19 | |||
| 20 | namespace Dumux { | ||
| 21 | /*! | ||
| 22 | * \ingroup TwoPNCTests | ||
| 23 | * \brief Definition of the spatial parameters for water management in PEM fuel cells. | ||
| 24 | */ | ||
| 25 | template<class GridGeometry, class Scalar> | ||
| 26 |
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3 | class FuelCellSpatialParams |
| 27 | : public FVPorousMediumFlowSpatialParamsMP<GridGeometry, Scalar, | ||
| 28 | FuelCellSpatialParams<GridGeometry, Scalar>> | ||
| 29 | { | ||
| 30 | using GridView = typename GridGeometry::GridView; | ||
| 31 | using ThisType = FuelCellSpatialParams<GridGeometry, Scalar>; | ||
| 32 | using ParentType = FVPorousMediumFlowSpatialParamsMP<GridGeometry, Scalar, ThisType>; | ||
| 33 | |||
| 34 | static constexpr int dimWorld = GridView::dimensionworld; | ||
| 35 | |||
| 36 | using Element = typename GridGeometry::GridView::template Codim<0>::Entity; | ||
| 37 | using GlobalPosition = typename Element::Geometry::GlobalCoordinate; | ||
| 38 | |||
| 39 | using DimWorldMatrix = Dune::FieldMatrix<Scalar, dimWorld, dimWorld>; | ||
| 40 | |||
| 41 | using PcKrSwCurve = FluidMatrix::VanGenuchtenDefault<Scalar>; | ||
| 42 | |||
| 43 | public: | ||
| 44 | using PermeabilityType = DimWorldMatrix; | ||
| 45 | |||
| 46 | 3 | FuelCellSpatialParams(std::shared_ptr<const GridGeometry> gridGeometry) | |
| 47 | : ParentType(gridGeometry) | ||
| 48 | 6 | , K_(0) | |
| 49 |
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9 | , pcKrSwCurve_("SpatialParams") |
| 50 | { | ||
| 51 | // intrinsic permeabilities | ||
| 52 |
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3 | K_[0][0] = 5e-11; |
| 53 | 3 | K_[1][1] = 5e-11; | |
| 54 |
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3 | temperature_ = getParam<Scalar>("Problem.InitialTemperature"); |
| 55 | 3 | } | |
| 56 | |||
| 57 | /*! | ||
| 58 | * \brief Returns the hydraulic conductivity \f$[m^2]\f$ | ||
| 59 | * | ||
| 60 | * \param globalPos The global position | ||
| 61 | */ | ||
| 62 | 301713 | DimWorldMatrix permeabilityAtPos(const GlobalPosition& globalPos) const | |
| 63 | 301713 | { return K_; } | |
| 64 | |||
| 65 | /*! | ||
| 66 | * \brief Defines the porosity \f$[-]\f$ of the spatial parameters | ||
| 67 | * | ||
| 68 | * \param globalPos The global position | ||
| 69 | */ | ||
| 70 | Scalar porosityAtPos(const GlobalPosition& globalPos) const | ||
| 71 | { return 0.2; } | ||
| 72 | |||
| 73 | /*! | ||
| 74 | * \brief Returns the fluid-matrix interaction law at a given location | ||
| 75 | * \param globalPos A global coordinate vector | ||
| 76 | */ | ||
| 77 | 603426 | auto fluidMatrixInteractionAtPos(const GlobalPosition &globalPos) const | |
| 78 | { | ||
| 79 |
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603426 | return makeFluidMatrixInteraction(pcKrSwCurve_); |
| 80 | } | ||
| 81 | |||
| 82 | /*! | ||
| 83 | * \brief Function for defining which phase is to be considered as the wetting phase. | ||
| 84 | * | ||
| 85 | * \param globalPos The position of the center of the element | ||
| 86 | * \return The wetting phase index | ||
| 87 | * \note We set a hydrophobic material. | ||
| 88 | */ | ||
| 89 | template<class FluidSystem> | ||
| 90 | int wettingPhaseAtPos(const GlobalPosition& globalPos) const | ||
| 91 | { return FluidSystem::gasPhaseIdx; } | ||
| 92 | |||
| 93 | /*! | ||
| 94 | * \brief Returns the temperature in the domain at the given position | ||
| 95 | * \param globalPos The position in global coordinates where the temperature should be specified. | ||
| 96 | */ | ||
| 97 | 164479 | Scalar temperatureAtPos(const GlobalPosition& globalPos) const | |
| 98 | { | ||
| 99 |
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164479 | return temperature_; |
| 100 | } | ||
| 101 | |||
| 102 | private: | ||
| 103 | DimWorldMatrix K_; | ||
| 104 | static constexpr Scalar eps_ = 1e-6; | ||
| 105 | const PcKrSwCurve pcKrSwCurve_; | ||
| 106 | Scalar temperature_; | ||
| 107 | }; | ||
| 108 | |||
| 109 | } // end namespace Dumux | ||
| 110 | |||
| 111 | #endif | ||
| 112 |