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Means.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_MEANS_HH
#define OPM_MEANS_HH
#include <cmath>
namespace Opm {
template <class Scalar>
inline Scalar arithmeticMean(Scalar x, Scalar y)
{ return (x+y)/2; }
template <class Scalar>
inline Scalar geometricMean(Scalar x, Scalar y)
{
if (x*y <= 0.0)
return 0.0;
return std::sqrt(x*y);
}
template <class Scalar>
inline Scalar harmonicMean(Scalar x, Scalar y)
{
if (x*y <= 0)
return 0.0;
return (2*x*y)/(y + x);
}
} // namespace Ewoms
#endif // EWOMS_AVERAGE_HH
Opm
This class implements a small container which holds the transmissibility mulitpliers for all the face...
Definition Exceptions.hpp:30
Opm::geometricMean
Scalar geometricMean(Scalar x, Scalar y)
Computes the geometric average of two values.
Definition Means.hpp:57
Opm::harmonicMean
Scalar harmonicMean(Scalar x, Scalar y)
Computes the harmonic average of two values.
Definition Means.hpp:74
Opm::arithmeticMean
Scalar arithmeticMean(Scalar x, Scalar y)
Computes the arithmetic average of two values.
Definition Means.hpp:45