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PRParams.hpp
1// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2// vi: set et ts=4 sw=4 sts=4:
3/*
4 Copyright 2022 NORCE.
5 Copyright 2022 SINTEF Digital, Mathematics and Cybernetics.
6
7 This file is part of the Open Porous Media project (OPM).
8
9 OPM is free software: you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation, either version 2 of the License, or
12 (at your option) any later version.
13
14 OPM is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with OPM. If not, see <http://www.gnu.org/licenses/>.
21
22 Consult the COPYING file in the top-level source directory of this
23 module for the precise wording of the license and the list of
24 copyright holders.
25*/
26#ifndef PR_PARAMS_HPP
27#define PR_PARAMS_HPP
28
29#include <cmath>
30
31namespace Opm {
32
33template <class Scalar, class FluidSystem>
35{
36 static constexpr Scalar R = Constants<Scalar>::R;
37
38public:
39 static Scalar calcOmegaA(Scalar temperature, unsigned compIdx, bool modified)
40 {
41 Scalar Tr = temperature / FluidSystem::criticalTemperature(compIdx);
42 Scalar omega = FluidSystem::acentricFactor(compIdx);
43 Scalar f_omega;
44 if (!modified || omega <= 0.49)
45 f_omega = 0.37464 + omega * (1.54226 + omega * (-0.26992));
46 else
47 f_omega = 0.379642 + omega * (1.48503 + omega * (-0.164423 + omega * 0.016666));
48 Valgrind::CheckDefined(f_omega);
49
50 Scalar tmp = 1 + f_omega*(1 - sqrt(Tr));
51 return 0.457235529 * tmp * tmp;
52 }
53
54 static Scalar calcOmegaB()
55 {
56 return Scalar(0.077796074);
57 }
58
59 static Scalar calcm1()
60 {
61 return Scalar(1 + std::sqrt(2));
62 }
63
64 static Scalar calcm2()
65 {
66 return Scalar(1 - std::sqrt(2));
67 }
68
69}; // class PRParams
70
71} // namespace Opm
72
73#endif
Definition Constants.hpp:40
Definition PRParams.hpp:35
This class implements a small container which holds the transmissibility mulitpliers for all the face...
Definition Exceptions.hpp:30