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225 lines
8.9 KiB
C++
225 lines
8.9 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/utility/miscUtilitiesBlackoil.hpp>
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#include <opm/core/utility/Units.hpp>
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#include <opm/core/grid.h>
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#include <opm/core/fluid/BlackoilPropertiesInterface.hpp>
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#include <opm/core/utility/ErrorMacros.hpp>
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#include <algorithm>
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#include <functional>
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#include <cmath>
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#include <iterator>
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namespace Opm
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{
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/// @brief Computes injected and produced volumes of all phases.
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/// Note 1: assumes that only the first phase is injected.
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/// Note 2: assumes that transport has been done with an
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/// implicit method, i.e. that the current state
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/// gives the mobilities used for the preceding timestep.
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/// @param[in] props fluid and rock properties.
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/// @param[in] p pressure (one value per cell)
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/// @param[in] z surface-volume values (for all P phases)
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/// @param[in] s saturation values (for all P phases)
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/// @param[in] src if < 0: total outflow, if > 0: first phase inflow.
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/// @param[in] dt timestep used
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/// @param[out] injected must point to a valid array with P elements,
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/// where P = s.size()/src.size().
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/// @param[out] produced must also point to a valid array with P elements.
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void computeInjectedProduced(const BlackoilPropertiesInterface& props,
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const std::vector<double>& press,
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const std::vector<double>& z,
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const std::vector<double>& s,
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const std::vector<double>& src,
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const double dt,
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double* injected,
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double* produced)
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{
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const int num_cells = src.size();
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const int np = s.size()/src.size();
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if (int(s.size()) != num_cells*np) {
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THROW("Sizes of s and src vectors do not match.");
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}
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std::fill(injected, injected + np, 0.0);
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std::fill(produced, produced + np, 0.0);
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std::vector<double> visc(np);
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std::vector<double> mob(np);
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for (int c = 0; c < num_cells; ++c) {
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if (src[c] > 0.0) {
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injected[0] += src[c]*dt;
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} else if (src[c] < 0.0) {
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const double flux = -src[c]*dt;
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const double* sat = &s[np*c];
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props.relperm(1, sat, &c, &mob[0], 0);
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props.viscosity(1, &press[c], &z[np*c], &c, &visc[0], 0);
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double totmob = 0.0;
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for (int p = 0; p < np; ++p) {
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mob[p] /= visc[p];
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totmob += mob[p];
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}
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for (int p = 0; p < np; ++p) {
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produced[p] += (mob[p]/totmob)*flux;
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}
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}
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}
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}
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/// @brief Computes total mobility for a set of saturation values.
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/// @param[in] props rock and fluid properties
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/// @param[in] cells cells with which the saturation values are associated
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/// @param[in] p pressure (one value per cell)
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/// @param[in] z surface-volume values (for all P phases)
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/// @param[in] s saturation values (for all phases)
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/// @param[out] totmob total mobilities.
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void computeTotalMobility(const Opm::BlackoilPropertiesInterface& props,
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const std::vector<int>& cells,
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const std::vector<double>& press,
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const std::vector<double>& z,
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const std::vector<double>& s,
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std::vector<double>& totmob)
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{
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std::vector<double> pmobc;
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computePhaseMobilities(props, cells, press, z, s, pmobc);
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const std::size_t np = props.numPhases();
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const std::vector<int>::size_type nc = cells.size();
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totmob.clear();
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totmob.resize(nc, 0.0);
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for (std::vector<int>::size_type c = 0; c < nc; ++c) {
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for (std::size_t p = 0; p < np; ++p) {
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totmob[ c ] += pmobc[c*np + p];
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}
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}
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}
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/*
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/// @brief Computes total mobility and omega for a set of saturation values.
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/// @param[in] props rock and fluid properties
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/// @param[in] cells cells with which the saturation values are associated
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/// @param[in] p pressure (one value per cell)
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/// @param[in] z surface-volume values (for all P phases)
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/// @param[in] s saturation values (for all phases)
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/// @param[out] totmob total mobility
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/// @param[out] omega fractional-flow weighted fluid densities.
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void computeTotalMobilityOmega(const Opm::BlackoilPropertiesInterface& props,
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const std::vector<int>& cells,
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const std::vector<double>& p,
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const std::vector<double>& z,
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const std::vector<double>& s,
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std::vector<double>& totmob,
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std::vector<double>& omega)
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{
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std::vector<double> pmobc;
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computePhaseMobilities(props, cells, p, z, s, pmobc);
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const std::size_t np = props.numPhases();
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const std::vector<int>::size_type nc = cells.size();
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totmob.clear();
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totmob.resize(nc, 0.0);
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omega.clear();
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omega.resize(nc, 0.0);
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const double* rho = props.density();
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for (std::vector<int>::size_type c = 0; c < nc; ++c) {
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for (std::size_t p = 0; p < np; ++p) {
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totmob[ c ] += pmobc[c*np + p];
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omega [ c ] += pmobc[c*np + p] * rho[ p ];
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}
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omega[ c ] /= totmob[ c ];
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}
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}
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*/
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/// @brief Computes phase mobilities for a set of saturation values.
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/// @param[in] props rock and fluid properties
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/// @param[in] cells cells with which the saturation values are associated
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/// @param[in] p pressure (one value per cell)
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/// @param[in] z surface-volume values (for all P phases)
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/// @param[in] s saturation values (for all phases)
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/// @param[out] pmobc phase mobilities (for all phases).
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void computePhaseMobilities(const Opm::BlackoilPropertiesInterface& props,
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const std::vector<int>& cells,
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const std::vector<double>& p,
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const std::vector<double>& z,
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const std::vector<double>& s,
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std::vector<double>& pmobc)
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{
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const int nc = props.numCells();
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const int np = props.numPhases();
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ASSERT (int(s.size()) == nc * np);
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std::vector<double> mu(nc*np);
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props.viscosity(nc, &p[0], &z[0], &cells[0], &mu[0], 0);
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pmobc.clear();
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pmobc.resize(nc*np, 0.0);
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double* dpmobc = 0;
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props.relperm(nc, &s[0], &cells[0],
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&pmobc[0], dpmobc);
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std::transform(pmobc.begin(), pmobc.end(),
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mu.begin(),
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pmobc.begin(),
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std::divides<double>());
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}
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/// Computes the fractional flow for each cell in the cells argument
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/// @param[in] props rock and fluid properties
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/// @param[in] cells cells with which the saturation values are associated
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/// @param[in] p pressure (one value per cell)
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/// @param[in] z surface-volume values (for all P phases)
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/// @param[in] s saturation values (for all phases)
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/// @param[out] fractional_flow the fractional flow for each phase for each cell.
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void computeFractionalFlow(const Opm::BlackoilPropertiesInterface& props,
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const std::vector<int>& cells,
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const std::vector<double>& p,
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const std::vector<double>& z,
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const std::vector<double>& s,
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std::vector<double>& fractional_flows)
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{
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const int num_phases = props.numPhases();
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std::vector<double> pc_mobs(cells.size() * num_phases);
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computePhaseMobilities(props, cells, p, z, s, pc_mobs);
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fractional_flows.resize(cells.size() * num_phases);
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for (size_t i = 0; i < cells.size(); ++i) {
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double phase_sum = 0.0;
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for (int phase = 0; phase < num_phases; ++phase) {
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phase_sum += pc_mobs[i * num_phases + phase];
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}
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for (int phase = 0; phase < num_phases; ++phase) {
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fractional_flows[i * num_phases + phase] = pc_mobs[i * num_phases + phase] / phase_sum;
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}
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}
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}
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} // namespace Opm
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