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112 lines
4.1 KiB
C++
112 lines
4.1 KiB
C++
// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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// vi: set et ts=4 sw=4 sts=4:
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/*
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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Consult the COPYING file in the top-level source directory of this
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module for the precise wording of the license and the list of
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copyright holders.
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*/
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/*!
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* \file
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*
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* \copydoc Opm::RichardsLocalResidual
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*/
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#ifndef EWOMS_RICHARDS_LOCAL_RESIDUAL_HH
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#define EWOMS_RICHARDS_LOCAL_RESIDUAL_HH
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#include "richardsintensivequantities.hh"
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#include "richardsextensivequantities.hh"
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namespace Opm {
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/*!
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* \ingroup RichardsModel
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* \brief Element-wise calculation of the residual for the Richards model.
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*/
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template <class TypeTag>
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class RichardsLocalResidual : public GetPropType<TypeTag, Properties::DiscLocalResidual>
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{
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using EqVector = GetPropType<TypeTag, Properties::EqVector>;
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using Evaluation = GetPropType<TypeTag, Properties::Evaluation>;
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using RateVector = GetPropType<TypeTag, Properties::RateVector>;
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using IntensiveQuantities = GetPropType<TypeTag, Properties::IntensiveQuantities>;
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using ElementContext = GetPropType<TypeTag, Properties::ElementContext>;
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using Indices = GetPropType<TypeTag, Properties::Indices>;
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enum { contiEqIdx = Indices::contiEqIdx };
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enum { liquidPhaseIdx = getPropValue<TypeTag, Properties::LiquidPhaseIndex>() };
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enum { numEq = getPropValue<TypeTag, Properties::NumEq>() };
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using Toolbox = Opm::MathToolbox<Evaluation>;
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public:
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/*!
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* \copydoc ImmiscibleLocalResidual::computeStorage
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*/
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template <class LhsEval>
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void computeStorage(Dune::FieldVector<LhsEval, numEq>& storage,
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const ElementContext& elemCtx,
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unsigned dofIdx,
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unsigned timeIdx) const
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{
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const IntensiveQuantities& intQuants = elemCtx.intensiveQuantities(dofIdx, timeIdx);
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// partial time derivative of the wetting phase mass
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storage[contiEqIdx] =
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Toolbox::template decay<LhsEval>(intQuants.fluidState().density(liquidPhaseIdx))
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*Toolbox::template decay<LhsEval>(intQuants.fluidState().saturation(liquidPhaseIdx))
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*Toolbox::template decay<LhsEval>(intQuants.porosity());
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}
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/*!
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* \copydoc ImmiscibleLocalResidual::computeFlux
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*/
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void computeFlux(RateVector& flux,
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const ElementContext& elemCtx,
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unsigned scvfIdx,
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unsigned timeIdx) const
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{
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const auto& extQuants = elemCtx.extensiveQuantities(scvfIdx, timeIdx);
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unsigned focusDofIdx = elemCtx.focusDofIndex();
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unsigned upIdx = static_cast<unsigned>(extQuants.upstreamIndex(liquidPhaseIdx));
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const IntensiveQuantities& up = elemCtx.intensiveQuantities(upIdx, timeIdx);
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// compute advective mass flux of the liquid phase. This is slightly hacky
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// because it is specific to the element-centered finite volume method.
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const Evaluation& rho = up.fluidState().density(liquidPhaseIdx);
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if (focusDofIdx == upIdx)
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flux[contiEqIdx] = extQuants.volumeFlux(liquidPhaseIdx)*rho;
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else
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flux[contiEqIdx] = extQuants.volumeFlux(liquidPhaseIdx)*Toolbox::value(rho);
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}
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/*!
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* \copydoc ImmiscibleLocalResidual::computeSource
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*/
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void computeSource(RateVector& source,
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const ElementContext& elemCtx,
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unsigned dofIdx,
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unsigned timeIdx) const
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{ elemCtx.problem().source(source, elemCtx, dofIdx, timeIdx); }
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};
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} // namespace Opm
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#endif
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