82 lines
2.6 KiB
C++
82 lines
2.6 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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* \copydoc Opm::EclThcLaw
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*/
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#ifndef OPM_ECL_THC_LAW_HPP
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#define OPM_ECL_THC_LAW_HPP
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#include "EclThcLawParams.hpp"
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namespace Opm
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{
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/*!
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* \ingroup material
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*
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* \brief Implements the total thermal conductivity and rock enthalpy relations used by ECL.
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*
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* This is the thermal conduction law based on the THCROCK, THCOIL, THCGAS and THCWATER
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* keywords.
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*/
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template <class ScalarT,
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class ParamsT = EclThcLawParams<ScalarT>>
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class EclThcLaw
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{
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public:
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using Params = ParamsT;
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using Scalar = typename Params::Scalar;
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/*!
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* \brief Given a fluid state, return the total thermal conductivity [W/m^2 / (K/m)] of the porous
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* medium.
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*/
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template <class FluidState, class Evaluation = typename FluidState::Scalar>
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static Evaluation thermalConductivity(const Params& params,
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const FluidState&)
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{
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// The thermal conductivity approach based on the THC* keywords.
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// let's assume that the porosity of the rock at standard condition is meant
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Scalar poro = params.porosity();
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// IMO this approach is very questionable because the total thermal conductivity
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// should at least depend on the current solution's phase saturation. Since ECL
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// is king, let's follow their lead and throw ourselfs down the cliff of obvious
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// incorrectness.
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//
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// TODO: also follow their fine leadership in the twophase case.
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constexpr const Scalar numPhases = 3.0;
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Scalar thconAvg =
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poro*(params.thcoil() + params.thcgas() + params.thcwater()) / numPhases
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+ (1.0 - poro)*params.thcrock();
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return thconAvg;
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}
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};
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} // namespace Opm
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#endif
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