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46 lines
1.9 KiB
C++
46 lines
1.9 KiB
C++
/*
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Copyright 2015, 2016 SINTEF ICT, Applied Mathematics.
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Copyright 2016 Statoil AS.
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef OPM_MULTIPHASEUPWIND_HEADER_INCLUDED
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#define OPM_MULTIPHASEUPWIND_HEADER_INCLUDED
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#include <array>
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namespace Opm
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{
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/// Compute upwind directions for three-phase flow across a connection.
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///
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/// @param[in] head_diff head differences by phase
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/// @param[in] mob1 phase mobilities for first cell
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/// @param[in] mob2 phase mobilities for second cell
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/// @param[in] transmissibility tranmissibility of connection
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/// @param[in] flux total volume flux across connection
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/// @return array containing, for each phase, 1.0 if flow in the
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/// direction of the connection, -1.0 if flow in the opposite
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/// direction.
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std::array<double, 3> connectionMultiPhaseUpwind(const std::array<double, 3>& head_diff,
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const std::array<double, 3>& mob1,
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const std::array<double, 3>& mob2,
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const double transmissibility,
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const double flux);
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} // namespace Opm
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#endif // OPM_MULTIPHASEUPWIND_HEADER_INCLUDED
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