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RegularizedBrooksCoreyParams.hpp
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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.
*/
#ifndef OPM_REGULARIZED_BROOKS_COREY_PARAMS_HPP
#define OPM_REGULARIZED_BROOKS_COREY_PARAMS_HPP
#include "BrooksCorey.hpp"
#include "BrooksCoreyParams.hpp"
#include <cassert>
#include <opm/material/common/EnsureFinalized.hpp>
namespace Opm {
template <class TraitsT>
class RegularizedBrooksCoreyParams : public BrooksCoreyParams<TraitsT>
{
typedef ::Opm::BrooksCoreyParams<TraitsT> BrooksCoreyParams;
typedef ::Opm::BrooksCorey<TraitsT, RegularizedBrooksCoreyParams> BrooksCorey;
typedef typename TraitsT::Scalar Scalar;
public:
typedef TraitsT Traits;
RegularizedBrooksCoreyParams()
: BrooksCoreyParams()
, pcnwLowSw_(0.01)
{
}
RegularizedBrooksCoreyParams(Scalar entryPressure, Scalar lambda)
: BrooksCoreyParams(entryPressure, lambda)
, pcnwLowSw_(0.01)
{ finalize(); }
void finalize()
{
BrooksCoreyParams::finalize();
pcnwLow_ = BrooksCorey::twoPhaseSatPcnw(*this, pcnwLowSw_);
pcnwSlopeLow_ = dPcnw_dSw_(pcnwLowSw_);
pcnwHigh_ = BrooksCorey::twoPhaseSatPcnw(*this, 1.0);
pcnwSlopeHigh_ = dPcnw_dSw_(1.0);
}
Scalar pcnwLowSw() const
{ EnsureFinalized::check(); return pcnwLowSw_; }
Scalar pcnwLow() const
{ EnsureFinalized::check(); return pcnwLow_; }
Scalar pcnwSlopeLow() const
{ EnsureFinalized::check(); return pcnwSlopeLow_; }
void setPcLowSw(Scalar value)
{ pcnwLowSw_ = value; }
Scalar pcnwHigh() const
{ EnsureFinalized::check(); return pcnwHigh_; }
Scalar pcnwSlopeHigh() const
{ EnsureFinalized::check(); return pcnwSlopeHigh_; }
private:
Scalar dPcnw_dSw_(Scalar Sw) const
{
// use finite differences to calculate the derivative w.r.t. Sw of the
// unregularized curve's capillary pressure.
const Scalar eps = 1e-7;
Scalar delta = 0.0;
Scalar pc1;
Scalar pc2;
if (Sw + eps < 1.0) {
pc2 = BrooksCorey::twoPhaseSatPcnw(*this, Sw + eps);
delta += eps;
}
else
pc2 = BrooksCorey::twoPhaseSatPcnw(*this, Sw);
if (Sw - eps > 0.0) {
pc1 = BrooksCorey::twoPhaseSatPcnw(*this, Sw - eps);
delta += eps;
}
else
pc1 = BrooksCorey::twoPhaseSatPcnw(*this, Sw);
return (pc2 - pc1)/delta;
}
Scalar pcnwLowSw_;
Scalar pcnwLow_;
Scalar pcnwSlopeLow_;
Scalar pcnwHigh_;
Scalar pcnwSlopeHigh_;
};
} // namespace Opm
#endif
BrooksCoreyParams.hpp
Specification of the material parameters for the Brooks-Corey constitutive relations.
BrooksCorey.hpp
Implementation of the Brooks-Corey capillary pressure <-> saturation relation.
EnsureFinalized.hpp
Default implementation for asserting finalization of parameter objects.
Opm::BrooksCoreyParams
Specification of the material parameters for the Brooks-Corey constitutive relations.
Definition BrooksCoreyParams.hpp:47
Opm::BrooksCoreyParams::lambda
Scalar lambda() const
Returns the lambda shape parameter.
Definition BrooksCoreyParams.hpp:81
Opm::BrooksCoreyParams::entryPressure
Scalar entryPressure() const
Returns the entry pressure [Pa].
Definition BrooksCoreyParams.hpp:68
Opm::BrooksCorey
Implementation of the Brooks-Corey capillary pressure <-> saturation relation.
Definition BrooksCorey.hpp:55
Opm::EnsureFinalized::finalize
OPM_HOST_DEVICE void finalize()
Mark the object as finalized.
Definition EnsureFinalized.hpp:82
Opm::RegularizedBrooksCoreyParams
Parameters that are necessary for the regularization of the Brooks-Corey capillary pressure model.
Definition RegularizedBrooksCoreyParams.hpp:46
Opm::RegularizedBrooksCoreyParams::pcnwSlopeHigh
Scalar pcnwSlopeHigh() const
Return the slope capillary pressure curve if Sw is larger or equal to 1.
Definition RegularizedBrooksCoreyParams.hpp:122
Opm::RegularizedBrooksCoreyParams::pcnwLowSw
Scalar pcnwLowSw() const
Return the threshold saturation below which the capillary pressure is regularized.
Definition RegularizedBrooksCoreyParams.hpp:83
Opm::RegularizedBrooksCoreyParams::finalize
void finalize()
Calculate all dependent quantities once the independent quantities of the parameter object have been ...
Definition RegularizedBrooksCoreyParams.hpp:69
Opm::RegularizedBrooksCoreyParams::pcnwLow
Scalar pcnwLow() const
Return the capillary pressure at the low threshold saturation of the wetting phase.
Definition RegularizedBrooksCoreyParams.hpp:90
Opm::RegularizedBrooksCoreyParams::pcnwSlopeLow
Scalar pcnwSlopeLow() const
Return the slope capillary pressure curve if Sw is smaller or equal to the low threshold saturation.
Definition RegularizedBrooksCoreyParams.hpp:99
Opm::RegularizedBrooksCoreyParams::pcnwHigh
Scalar pcnwHigh() const
Return the capillary pressure at the high threshold saturation of the wetting phase.
Definition RegularizedBrooksCoreyParams.hpp:113
Opm::RegularizedBrooksCoreyParams::setPcLowSw
void setPcLowSw(Scalar value)
Set the threshold saturation below which the capillary pressure is regularized.
Definition RegularizedBrooksCoreyParams.hpp:106
Opm
This class implements a small container which holds the transmissibility mulitpliers for all the face...
Definition Exceptions.hpp:30