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208 lines
8.4 KiB
C++
208 lines
8.4 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/polymer/polymerUtilities.hpp>
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namespace Opm
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{
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/// @brief Computes total mobility for a set of s/c values.
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/// @param[in] props rock and fluid properties
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/// @param[in] polyprops polymer properties
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/// @param[in] cells cells with which the saturation values are associated
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/// @param[in] s saturation values (for all phases)
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/// @param[in] c polymer concentration
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/// @param[out] totmob total mobilities.
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void computeTotalMobility(const Opm::IncompPropertiesInterface& props,
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const Opm::PolymerProperties& polyprops,
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const std::vector<int>& cells,
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const std::vector<double>& s,
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const std::vector<double>& c,
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const std::vector<double>& cmax,
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std::vector<double>& totmob)
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{
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int num_cells = cells.size();
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totmob.resize(num_cells);
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std::vector<double> kr(2*num_cells);
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props.relperm(num_cells, &s[0], &cells[0], &kr[0], 0);
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const double* visc = props.viscosity();
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for (int cell = 0; cell < num_cells; ++cell) {
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double* kr_cell = &kr[2*cell];
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polyprops.effectiveTotalMobility(c[cell], cmax[cell], visc, kr_cell,
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totmob[cell]);
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}
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}
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/// @brief Computes total mobility and omega for a set of s/c values.
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/// @param[in] props rock and fluid properties
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/// @param[in] polyprops polymer properties
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/// @param[in] cells cells with which the saturation values are associated
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/// @param[in] s saturation values (for all phases)
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/// @param[in] c polymer concentration
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/// @param[out] totmob total mobility
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/// @param[out] omega mobility-weighted (or fractional-flow weighted)
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/// fluid densities.
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void computeTotalMobilityOmega(const Opm::IncompPropertiesInterface& props,
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const Opm::PolymerProperties& polyprops,
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const std::vector<int>& cells,
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const std::vector<double>& s,
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const std::vector<double>& c,
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const std::vector<double>& cmax,
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std::vector<double>& totmob,
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std::vector<double>& omega)
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{
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int num_cells = cells.size();
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int num_phases = props.numPhases();
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totmob.resize(num_cells);
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omega.resize(num_cells);
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ASSERT(int(s.size()) == num_cells*num_phases);
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std::vector<double> kr(num_cells*num_phases);
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props.relperm(num_cells, &s[0], &cells[0], &kr[0], 0);
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const double* visc = props.viscosity();
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const double* rho = props.density();
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double mob[2]; // here we assume num_phases=2
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for (int cell = 0; cell < num_cells; ++cell) {
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double* kr_cell = &kr[2*cell];
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polyprops.effectiveMobilities(c[cell], cmax[cell], visc, kr_cell,
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mob);
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totmob[cell] = mob[0] + mob[1];
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omega[cell] = rho[0]*mob[0]/totmob[cell] + rho[1]*mob[1]/totmob[cell];
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}
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}
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/// @brief Computes injected and produced volumes of all phases,
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/// and injeced and produced polymer mass.
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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] polyprops polymer properties
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/// @param[in] s saturation values (for all P phases)
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/// @param[in] c polymer concentration
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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[in] inj_c injected concentration
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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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/// @param[out] polyinj injected mass of polymer
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/// @param[out] polyprod produced mass of polymer
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void computeInjectedProduced(const IncompPropertiesInterface& props,
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const Opm::PolymerProperties& polyprops,
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const std::vector<double>& s,
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const std::vector<double>& c,
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const std::vector<double>& cmax,
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const std::vector<double>& src,
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const double dt,
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const double inj_c,
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double* injected,
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double* produced,
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double& polyinj,
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double& polyprod)
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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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polyinj = 0.0;
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polyprod = 0.0;
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const double* visc = props.viscosity();
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std::vector<double> kr_cell(np);
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double mob[2];
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for (int cell = 0; cell < num_cells; ++cell) {
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if (src[cell] > 0.0) {
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injected[0] += src[cell]*dt;
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polyinj += src[cell]*dt*inj_c;
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} else if (src[cell] < 0.0) {
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const double flux = -src[cell]*dt;
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const double* sat = &s[np*cell];
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props.relperm(1, sat, &cell, &kr_cell[0], 0);
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polyprops.effectiveMobilities(c[cell], cmax[cell], visc,
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&kr_cell[0], mob);
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double totmob = mob[0] + mob[1];
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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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polyprod += (mob[0]/totmob)*flux*c[cell]; // TODO check this term.
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}
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}
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}
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/// @brief Computes total polymer mass over all grid cells.
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/// @param[in] pv the pore volume by cell.
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/// @param[in] s saturation values (for all P phases)
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/// @param[in] c polymer concentration
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/// @param[in] dps dead pore space
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/// @return total polymer mass in grid.
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double computePolymerMass(const std::vector<double>& pv,
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const std::vector<double>& s,
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const std::vector<double>& c,
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const double dps)
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{
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const int num_cells = pv.size();
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const int np = s.size()/pv.size();
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if (int(s.size()) != num_cells*np) {
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THROW("Sizes of s and pv vectors do not match.");
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}
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double polymass = 0.0;
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for (int cell = 0; cell < num_cells; ++cell) {
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polymass += c[cell]*s[np*cell + 0]*pv[cell]*(1 - dps);
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}
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return polymass;
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}
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/// @brief Computes total absorbed polymer mass over all grid cells.
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/// @param[in] props fluid and rock properties.
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/// @param[in] polyprops polymer properties
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/// @param[in] pv the pore volume by cell.
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/// @param[in] cmax max polymer concentration for cell
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/// @return total absorbed polymer mass.
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double computePolymerAdsorbed(const IncompPropertiesInterface& props,
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const Opm::PolymerProperties& polyprops,
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const std::vector<double>& pv,
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const std::vector<double>& cmax)
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{
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const int num_cells = pv.size();
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const double rhor = polyprops.rockDensity();
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const double* poro = props.porosity();
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double abs_mass = 0.0;
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for (int cell = 0; cell < num_cells; ++cell) {
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double c_ads;
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polyprops.simpleAdsorption(cmax[cell], c_ads);
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abs_mass += c_ads*pv[cell]*((1.0 - poro[cell])/poro[cell])*rhor;
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}
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return abs_mass;
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}
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} // namespace Opm
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