opm-simulators/tests/test_multiphaseupwind.cpp

105 lines
3.8 KiB
C++

/*
Copyright 2017 SINTEF Digital, Mathematics and Cybernetics.
Copyright 2017 Statoil ASA.
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 3 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/>.
*/
#include <config.h>
#define NVERBOSE // Suppress own messages when throw()ing
#define BOOST_TEST_MODULE OPM-multiPhaseUpwind
#include <boost/test/unit_test.hpp>
#include <opm/autodiff/multiPhaseUpwind.hpp>
// For all the following cases we test a setup with two cells,
// forming a gravity column:
//
// -------------------
// | |
// | Cell 1 |
// | |
// | | |
// ------------------- | flux
// | | V
// | Cell 2 |
// | |
// | |
// -------------------
//
// The gravity-related head differences gd ~= rho * g * grad z
// are set to (4, -1, -2) for (w, o, g).
// The mobilities are all 1 and the transmissibility is 1.
// The total flux from cell 1 to 2 will vary from case to case.
BOOST_AUTO_TEST_CASE(GravityColumnLowFlux)
{
// Case 1: a gravity column with two cells and low total flux.
// The total flux from cell 1 to 2 is 1.0.
const std::array<double, 3> gd = {{ 4.0, -1.0, -2.0 }};
const std::array<double, 3> mob1 = {{ 1.0, 1.0, 1.0 }};
const std::array<double, 3> mob2 = {{ 1.0, 1.0, 1.0 }};
const double transmissibility = 1.0;
const double flux = 1.0;
const std::array<double, 3> expected_upw = {{ 1.0, -1.0, -1.0 }};
const std::array<double, 3> upw = Opm::connectionMultiPhaseUpwind(gd, mob1, mob2, transmissibility, flux);
BOOST_CHECK_EQUAL(upw[0], expected_upw[0]);
BOOST_CHECK_EQUAL(upw[1], expected_upw[1]);
BOOST_CHECK_EQUAL(upw[2], expected_upw[2]);
}
BOOST_AUTO_TEST_CASE(GravityColumnMediumFlux)
{
// Case 2: a gravity column with two cells and medium-sized total flux.
// The total flux from cell 1 to 2 is 5.0.
const std::array<double, 3> gd = {{ 4.0, -1.0, -2.0 }};
const std::array<double, 3> mob1 = {{ 1.0, 1.0, 1.0 }};
const std::array<double, 3> mob2 = {{ 1.0, 1.0, 1.0 }};
const double transmissibility = 1.0;
const double flux = 5.0;
const std::array<double, 3> expected_upw = {{ 1.0, 1.0, -1.0 }};
const std::array<double, 3> upw = Opm::connectionMultiPhaseUpwind(gd, mob1, mob2, transmissibility, flux);
BOOST_CHECK_EQUAL(upw[0], expected_upw[0]);
BOOST_CHECK_EQUAL(upw[1], expected_upw[1]);
BOOST_CHECK_EQUAL(upw[2], expected_upw[2]);
}
BOOST_AUTO_TEST_CASE(GravityColumnHighFlux)
{
// Case 3: a gravity column with two cell and high total flux.
// The total flux from cell 1 to 2 is 10.0.
const std::array<double, 3> gd = {{ 4.0, -1.0, -2.0 }};
const std::array<double, 3> mob1 = {{ 1.0, 1.0, 1.0 }};
const std::array<double, 3> mob2 = {{ 1.0, 1.0, 1.0 }};
const double transmissibility = 1.0;
const double flux = 10.0;
const std::array<double, 3> expected_upw = {{ 1.0, 1.0, 1.0 }};
const std::array<double, 3> upw = Opm::connectionMultiPhaseUpwind(gd, mob1, mob2, transmissibility, flux);
BOOST_CHECK_EQUAL(upw[0], expected_upw[0]);
BOOST_CHECK_EQUAL(upw[1], expected_upw[1]);
BOOST_CHECK_EQUAL(upw[2], expected_upw[2]);
}