Files
opm-common/opm/material/fluidmatrixinteractions/EffToAbsLaw.hpp
Andreas Lauser da401551be clean up the licensing preable of source files
this patch removes the in-file lists in favor of a global list of in
the COPYING file. this is done because (a) maintaining a list of
authors at the beginning of each source file is a major pain in the
a**, (b) for this reason, the list of authors was not accurate in
about 85% of all cases where more than one person was involved and (c)
this list is not legally binding in any way (the copyright is at the
person who authored a given change; if these lists had any legal
relevance, one could "aquire" the copyright of the module by forking
it and replacing the lists...)
2016-03-15 00:58:09 +01:00

393 lines
17 KiB
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// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
/*
This file is part of the Open Porous Media project (OPM).
OPM is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
OPM is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OPM. If not, see <http://www.gnu.org/licenses/>.
Consult the COPYING file in the top-level source directory of this
module for the precise wording of the license and the list of
copyright holders.
*/
/*!
* \file
* \copydoc Opm::EffToAbsLaw
*/
#ifndef OPM_EFF_TO_ABS_LAW_HPP
#define OPM_EFF_TO_ABS_LAW_HPP
#include "EffToAbsLawParams.hpp"
#include <opm/material/fluidstates/SaturationOverlayFluidState.hpp>
namespace Opm {
/*!
* \ingroup FluidMatrixInteractions
*
* \brief This material law takes a material law defined for effective
* saturations and converts it to a material law defined on absolute
* saturations.
*
* The idea: "material laws" (like VanGenuchten or BrooksCorey) are
* defined for effective saturations. The numeric calculations
* however are performed with absolute saturations. The EffToAbsLaw
* class gets the "material laws" actually used as well as the
* corresponding parameter container as template arguments.
*
* Subsequently, the desired function (pc, Sw... ) of the actually
* used "material laws" are called but with the saturations already
* converted from absolute to effective.
*
* This approach makes sure that in the "material laws" only effective
* saturations are considered, which makes sense, as these laws only
* deal with effective saturations. This also allows for changing the
* calculation of the effective saturations easily, as this is subject
* of discussion / may be problem specific.
*
* Additionally, handing over effective saturations to the "material
* laws" in stead of them calculating effective saturations prevents
* accidently "converting twice".
*
* This boils down to:
* - the actual material laws (linear, VanGenuchten...) do not need to
* deal with any kind of conversion
* - the definition of the material law in the spatial parameters is
* not really intuitive, but using it is: Hand in values, get back
* values, do not deal with conversion.
*/
template <class EffLawT, class ParamsT = EffToAbsLawParams<typename EffLawT::Params, EffLawT::numPhases> >
class EffToAbsLaw : public EffLawT::Traits
{
typedef EffLawT EffLaw;
public:
typedef typename EffLaw::Traits Traits;
typedef ParamsT Params;
typedef typename EffLaw::Scalar Scalar;
//! The number of fluid phases
static const int numPhases = EffLaw::numPhases;
//! Specify whether this material law implements the two-phase
//! convenience API
static const bool implementsTwoPhaseApi = EffLaw::implementsTwoPhaseApi;
//! Specify whether this material law implements the two-phase
//! convenience API which only depends on the phase saturations
static const bool implementsTwoPhaseSatApi = EffLaw::implementsTwoPhaseSatApi;
//! Specify whether the quantities defined by this material law
//! are saturation dependent
static const bool isSaturationDependent = EffLaw::isSaturationDependent;
//! Specify whether the quantities defined by this material law
//! are dependent on the absolute pressure
static const bool isPressureDependent = EffLaw::isPressureDependent;
//! Specify whether the quantities defined by this material law
//! are temperature dependent
static const bool isTemperatureDependent = EffLaw::isTemperatureDependent;
//! Specify whether the quantities defined by this material law
//! are dependent on the phase composition
static const bool isCompositionDependent = EffLaw::isCompositionDependent;
/*!
* \brief The capillary pressure-saturation curves depending on absolute saturations.
*
* \param values A random access container which stores the
* relative pressure of each fluid phase.
* \param params The parameter object expressing the coefficients
* required by the van Genuchten law.
* \param fs The fluid state for which the capillary pressure
* ought to be calculated
*/
template <class Container, class FluidState>
static void capillaryPressures(Container &values, const Params &params, const FluidState &fs)
{
typedef Opm::SaturationOverlayFluidState<FluidState> OverlayFluidState;
OverlayFluidState overlayFs(fs);
for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
overlayFs.setSaturation(phaseIdx,
effectiveSaturation(params,
fs.saturation(phaseIdx),
phaseIdx));
}
EffLaw::template capillaryPressures<Container, OverlayFluidState>(values, params, overlayFs);
}
/*!
* \brief The relative permeability-saturation curves depending on absolute saturations.
*
* \param values A random access container which stores the
* relative permeability of each fluid phase.
* \param params The parameter object expressing the coefficients
* required by the van Genuchten law.
* \param fs The fluid state for which the relative permeabilities
* ought to be calculated
*/
template <class Container, class FluidState>
static void relativePermeabilities(Container &values, const Params &params, const FluidState &fs)
{
typedef Opm::SaturationOverlayFluidState<FluidState> OverlayFluidState;
OverlayFluidState overlayFs(fs);
for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
overlayFs.setSaturation(phaseIdx,
effectiveSaturation(params,
fs.saturation(phaseIdx),
phaseIdx));
}
EffLaw::template relativePermeabilities<Container, OverlayFluidState>(values, params, overlayFs);
}
/*!
* \brief The capillary pressure-saturation curve.
*
*
* \param params A object that stores the appropriate coefficients
* for the respective law.
*
* \return Capillary pressure [Pa] calculated by specific
* constitutive relation (e.g. Brooks & Corey, van
* Genuchten, linear...)
*/
template <class FluidState, class Evaluation = typename FluidState::Scalar>
static Evaluation pcnw(const Params &params, const FluidState &fs)
{
typedef Opm::SaturationOverlayFluidState<FluidState> OverlayFluidState;
static_assert(FluidState::numPhases == numPhases,
"The fluid state and the material law must exhibit the same "
"number of phases!");
OverlayFluidState overlayFs(fs);
for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
overlayFs.setSaturation(phaseIdx,
effectiveSaturation(params,
fs.saturation(phaseIdx),
phaseIdx));
}
return EffLaw::template pcnw<OverlayFluidState, Evaluation>(params, overlayFs);
}
template <class Evaluation>
static typename std::enable_if<implementsTwoPhaseSatApi, Evaluation>::type
twoPhaseSatPcnw(const Params &params, const Evaluation& SwAbs)
{
const Evaluation& SwEff = effectiveSaturation(params, SwAbs, Traits::wettingPhaseIdx);
return EffLaw::twoPhaseSatPcnw(params, SwEff);
}
/*!
* \brief The saturation-capillary pressure curves.
*/
template <class Container, class FluidState>
static void saturations(Container &values, const Params &params, const FluidState &fs)
{
EffLaw::template saturations<Container, FluidState>(values, params, fs);
for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++phaseIdx) {
values[phaseIdx] = absoluteSaturation(params, values[phaseIdx], phaseIdx);
}
}
/*!
* \brief Calculate wetting liquid phase saturation given that
* the rest of the fluid state has been initialized
*/
template <class FluidState, class Evaluation = typename FluidState::Scalar>
static Evaluation Sw(const Params &params, const FluidState &fs)
{
return absoluteSaturation(params,
EffLaw::template Sw<FluidState, Evaluation>(params, fs),
Traits::wettingPhaseIdx);
}
template <class Evaluation>
static typename std::enable_if<implementsTwoPhaseSatApi, Evaluation>::type
twoPhaseSatSw(const Params &params, const Evaluation& Sw)
{ return absoluteSaturation(params,
EffLaw::twoPhaseSatSw(params, Sw),
Traits::wettingPhaseIdx); }
/*!
* \brief Calculate non-wetting liquid phase saturation given that
* the rest of the fluid state has been initialized
*/
template <class FluidState, class Evaluation = typename FluidState::Scalar>
static Evaluation Sn(const Params &params, const FluidState &fs)
{
return absoluteSaturation(params,
EffLaw::template Sn<FluidState, Evaluation>(params, fs),
Traits::nonWettingPhaseIdx);
}
template <class Evaluation>
static typename std::enable_if<implementsTwoPhaseSatApi, Evaluation>::type
twoPhaseSatSn(const Params &params, const Evaluation& Sw)
{
return absoluteSaturation(params,
EffLaw::twoPhaseSatSn(params, Sw),
Traits::nonWettingPhaseIdx);
}
/*!
* \brief Calculate gas phase saturation given that the rest of
* the fluid state has been initialized
*
* This method is only available for at least three fluid phases
*/
template <class FluidState, class Evaluation = typename FluidState::Scalar>
static typename std::enable_if< (Traits::numPhases > 2), Evaluation>::type
Sg(const Params &params, const FluidState &fs)
{
return absoluteSaturation(params,
EffLaw::template Sg<FluidState, Evaluation>(params, fs),
Traits::gasPhaseIdx);
}
/*!
* \brief The relative permeability for the wetting phase.
*
* \param params A container object that is populated with the appropriate coefficients for the respective law.
* Therefore, in the (problem specific) spatialParameters first, the material law is chosen, and then the params container
* is constructed accordingly. Afterwards the values are set there, too.
* \return Relative permeability of the wetting phase calculated as implied by EffLaw e.g. Brooks & Corey, van Genuchten, linear... .
*
*/
template <class FluidState, class Evaluation = typename FluidState::Scalar>
static Evaluation krw(const Params &params, const FluidState &fs)
{
typedef Opm::SaturationOverlayFluidState<FluidState> OverlayFluidState;
static_assert(FluidState::numPhases == numPhases,
"The fluid state and the material law must exhibit the same "
"number of phases!");
OverlayFluidState overlayFs(fs);
for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
overlayFs.setSaturation(phaseIdx,
effectiveSaturation(params,
fs.saturation(phaseIdx),
phaseIdx));
}
return EffLaw::template krw<OverlayFluidState, Evaluation>(params, overlayFs);
}
template <class Evaluation>
static typename std::enable_if<implementsTwoPhaseSatApi, Evaluation>::type
twoPhaseSatKrw(const Params &params, const Evaluation& Sw)
{ return EffLaw::twoPhaseSatKrw(params, effectiveSaturation(params, Sw, Traits::nonWettingPhaseIdx)); }
/*!
* \brief The relative permeability of the non-wetting phase.
*/
template <class FluidState, class Evaluation = typename FluidState::Scalar>
static Evaluation krn(const Params &params, const FluidState &fs)
{
typedef Opm::SaturationOverlayFluidState<FluidState> OverlayFluidState;
static_assert(FluidState::numPhases == numPhases,
"The fluid state and the material law must exhibit the same "
"number of phases!");
OverlayFluidState overlayFs(fs);
for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
overlayFs.setSaturation(phaseIdx,
effectiveSaturation(params,
fs.saturation(phaseIdx),
phaseIdx));
}
return EffLaw::template krn<OverlayFluidState, Evaluation>(params, overlayFs);
}
template <class Evaluation>
static typename std::enable_if<implementsTwoPhaseSatApi, Evaluation>::type
twoPhaseSatKrn(const Params &params, const Evaluation& Sw)
{ return EffLaw::twoPhaseSatKrn(params, effectiveSaturation(params, Sw, Traits::nonWettingPhaseIdx)); }
/*!
* \brief The relative permability of the gas phase
*
* This method is only available for at least three fluid phases
*/
template <class FluidState, class Evaluation = typename FluidState::Scalar>
static typename std::enable_if< (Traits::numPhases > 2), Evaluation>::type
krg(const Params &params, const FluidState &fs)
{
typedef Opm::SaturationOverlayFluidState<FluidState> OverlayFluidState;
static_assert(FluidState::numPhases == numPhases,
"The fluid state and the material law must exhibit the same "
"number of phases!");
OverlayFluidState overlayFs(fs);
for (unsigned phaseIdx = 0; phaseIdx < numPhases; ++ phaseIdx) {
overlayFs.setSaturation(phaseIdx,
effectiveSaturation(params,
fs.saturation(phaseIdx),
phaseIdx));
}
return EffLaw::template krg<OverlayFluidState, Evaluation>(params, overlayFs);
}
/*!
* \brief Convert an absolute saturation to an effective one.
*/
template <class Evaluation>
static Evaluation effectiveSaturation(const Params &params, const Evaluation& S, unsigned phaseIdx)
{ return (S - params.residualSaturation(phaseIdx))/(1.0 - params.sumResidualSaturations()); }
/*!
* \brief Convert an effective saturation to an absolute one.
*/
template <class Evaluation>
static Evaluation absoluteSaturation(const Params &params, const Evaluation& S, unsigned phaseIdx)
{ return S*(1.0 - params.sumResidualSaturations()) + params.residualSaturation(phaseIdx); }
private:
/*!
* \brief Derivative of the effective saturation w.r.t. the absolute saturation.
*
* \param params A container object that is populated with the appropriate coefficients for the respective law.
* Therefore, in the (problem specific) spatialParameters first, the material law is chosen, and then the params container
* is constructed accordingly. Afterwards the values are set there, too.
* \return Derivative of the effective saturation w.r.t. the absolute saturation.
*/
static Scalar dSeff_dSabs_(const Params &params, int /*phaseIdx*/)
{ return 1.0/(1 - params.sumResidualSaturations()); }
/*!
* \brief Derivative of the absolute saturation w.r.t. the effective saturation.
*
* \param params A container object that is populated with the appropriate coefficients for the respective law.
* Therefore, in the (problem specific) spatialParameters first, the material law is chosen, and then the params container
* is constructed accordingly. Afterwards the values are set there, too.
* \return Derivative of the absolute saturation w.r.t. the effective saturation.
*/
static Scalar dSabs_dSeff_(const Params &params, int /*phaseIdx*/)
{ return 1 - params.sumResidualSaturations(); }
};
} // namespace Opm
#endif