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FullerMethod.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_FULLERMETHOD_HPP
#define OPM_FULLERMETHOD_HPP
#include <opm/material/common/Means.hpp>
#include <opm/material/common/MathToolbox.hpp>
#include <cmath>
namespace Opm {
namespace BinaryCoeff {
template <class Scalar, class Evaluation = Scalar>
inline Evaluation fullerMethod(const Scalar* M, // molar masses [g/mol]
const Scalar* SigmaNu, // atomic diffusion volume
const Evaluation& temperature, // [K]
const Evaluation& pressure) // [Pa]
{
// "effective" molar mass in [g/m^3]
Scalar Mab = harmonicMean(M[0], M[1]);
// Fuller's method
const Evaluation& tmp = std::pow(SigmaNu[0], 1./3) + std::pow(SigmaNu[1], 1./3);
return 1e-4 * (143.0*pow(temperature, 1.75))/(pressure*std::sqrt(Mab)*tmp*tmp);
}
} // namespace BinaryCoeff
} // namespace Opm
#endif
Opm::BinaryCoeff::fullerMethod
Evaluation fullerMethod(const Scalar *M, const Scalar *SigmaNu, const Evaluation &temperature, const Evaluation &pressure)
Estimate binary diffusion coefficents in gases according to the method by Fuller.
Definition FullerMethod.hpp:56
MathToolbox.hpp
A traits class which provides basic mathematical functions for arbitrary scalar floating point values...
Means.hpp
Implements some common averages.
Opm
This class implements a small container which holds the transmissibility mulitpliers for all the face...
Definition Exceptions.hpp:30
Opm::harmonicMean
Scalar harmonicMean(Scalar x, Scalar y)
Computes the harmonic average of two values.
Definition Means.hpp:74