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89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
/*
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Copyright 2012 SINTEF ICT, Applied Mathematics.
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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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#include <opm/core/fluid/RockCompressibility.hpp>
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#include <opm/core/eclipse/EclipseGridParser.hpp>
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#include <opm/core/utility/parameters/ParameterGroup.hpp>
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#include <opm/core/utility/Units.hpp>
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#include <opm/core/utility/ErrorMacros.hpp>
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#include <opm/core/utility/linearInterpolation.hpp>
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namespace Opm
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{
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RockCompressibility::RockCompressibility(const parameter::ParameterGroup& param)
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: pref_(0.0),
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rock_comp_(0.0)
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{
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pref_ = param.getDefault("rock_compressibility_pref", 100.0)*unit::barsa;
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rock_comp_ = param.getDefault("rock_compressibility", 0.0)/unit::barsa;
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}
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RockCompressibility::RockCompressibility(const EclipseGridParser& deck)
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: pref_(0.0),
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rock_comp_(0.0)
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{
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if (deck.hasField("ROCKTAB")) {
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const table_t& rt = deck.getROCKTAB().rocktab_;
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int n = rt[0][0].size();
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p_.resize(n);
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poromult_.resize(n);
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for (int i = 0; i < n; ++i) {
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p_[i] = rt[0][0][i];
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poromult_[i] = rt[0][1][i];
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}
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} else if (deck.hasField("ROCK")) {
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const ROCK& r = deck.getROCK();
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pref_ = r.rock_compressibilities_[0][0];
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rock_comp_ = r.rock_compressibilities_[0][1];
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} else {
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std::cout << "**** warning: no rock compressibility data found in deck (ROCK or ROCKTAB)." << std::endl;
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}
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}
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bool RockCompressibility::isActive() const
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{
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return !p_.empty() || (rock_comp_ != 0.0);
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}
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double RockCompressibility::poroMult(double pressure) const
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{
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if (p_.empty()) {
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// Approximating with a quadratic curve.
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const double cpnorm = rock_comp_*(pressure - pref_);
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return (1.0 + cpnorm + 0.5*cpnorm*cpnorm);
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} else {
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return Opm::linearInterpolation(p_, poromult_, pressure);
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}
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}
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double RockCompressibility::rockComp(double pressure) const
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{
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if (p_.empty()) {
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return rock_comp_;
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} else {
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const double poromult = Opm::linearInterpolation(p_, poromult_, pressure);
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const double dporomultdp = Opm::linearInterpolationDerivative(p_, poromult_, pressure);
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return dporomultdp/poromult;
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}
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}
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} // namespace Opm
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