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142 lines
6.4 KiB
C++
142 lines
6.4 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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#ifndef OPM_INCOMPTPFA_HEADER_INCLUDED
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#define OPM_INCOMPTPFA_HEADER_INCLUDED
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#include <vector>
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struct UnstructuredGrid;
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struct ifs_tpfa_data;
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struct Wells;
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struct FlowBoundaryConditions;
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namespace Opm
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{
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class LinearSolverInterface;
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/// Encapsulating a tpfa pressure solver for the incompressible case.
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/// Supports gravity and simple sources as driving forces.
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/// Below we use the shortcuts D for the number of dimensions, N
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/// for the number of cells and F for the number of faces.
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/// Note: we intend to add wells in the future.
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class IncompTpfa
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{
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public:
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/// Construct solver.
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/// \param[in] g A 2d or 3d grid.
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/// \param[in] permeability Array of permeability tensors, the array
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/// should have size N*D^2, if D == g.dimensions
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/// and N == g.number_of_cells.
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/// \param[in] gravity Gravity vector. If nonzero, the array should
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/// have D elements.
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/// \param[in] wells The wells argument. Will be used in solution,
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/// is ignored if NULL
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IncompTpfa(const UnstructuredGrid& g,
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const double* permeability,
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const double* gravity,
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const LinearSolverInterface& linsolver,
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const struct Wells* wells = 0);
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/// Destructor.
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~IncompTpfa();
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/// Assemble and solve incompressible pressure system.
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/// \param[in] totmob Must contain N total mobility values (one per cell).
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/// \f$totmob = \sum_{p} kr_p/mu_p\f$.
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/// \param[in] omega Must be empty if constructor gravity argument was null.
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/// Otherwise must contain N mobility-weighted density values (one per cell).
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/// \f$omega = \frac{\sum_{p} mob_p rho_p}{\sum_p rho_p}\f$.
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/// \param[in] src Must contain N source rates (one per cell).
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/// Positive values represent total inflow rates,
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/// negative values represent total outflow rates.
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/// \param[in] bcs If non-null, specifies boundary conditions.
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/// If null, noflow conditions are assumed.
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/// \param[out] pressure Will contain N cell-pressure values.
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/// \param[out] faceflux Will contain F signed face flux values.
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/// \param[out] well_bhp Will contain bhp values for each well passed
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/// in the constructor
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/// \param[out] well_rate Will contain rate values for each well passed
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/// in the constructor
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void solve(const std::vector<double>& totmob,
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const std::vector<double>& omega,
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const std::vector<double>& src,
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const std::vector<double>& wdp,
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const FlowBoundaryConditions* bcs,
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std::vector<double>& pressure,
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std::vector<double>& faceflux,
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std::vector<double>& well_bhp,
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std::vector<double>& well_rate);
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/// Assemble and solve pressure system with rock compressibility (assumed constant per cell).
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/// \param[in] totmob Must contain N total mobility values (one per cell).
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/// totmob = \sum_{p} kr_p/mu_p.
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/// \param[in] omega Must be empty if constructor gravity argument was null.
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/// Otherwise must contain N fractional-flow-weighted density
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/// values (one per cell).
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/// omega = \frac{\sum_{p} mob_p rho_p}{\sum_p mob_p}.
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/// \param[in] src Must contain N source rates (one per cell).
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/// Positive values represent total inflow rates,
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/// negative values represent total outflow rates.
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/// \param[in] bcs If non-null, specifies boundary conditions.
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/// If null, noflow conditions are assumed.
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/// \param[in] porevol Must contain N pore volumes.
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/// \param[in] rock_comp Must contain N rock compressibilities.
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/// rock_comp = (d poro / d p)*(1/poro).
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/// \param[in] dt Timestep.
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/// \param[out] pressure Will contain N cell-pressure values.
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/// \param[out] faceflux Will contain F signed face flux values.
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/// \param[out] well_bhp Will contain bhp values for each well passed
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/// in the constructor
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/// \param[out] well_rate Will contain rate values for each well passed
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/// in the constructor
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void solve(const std::vector<double>& totmob,
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const std::vector<double>& omega,
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const std::vector<double>& src,
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const std::vector<double>& wdp,
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const FlowBoundaryConditions* bcs,
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const std::vector<double>& porevol,
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const std::vector<double>& rock_comp,
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const double dt,
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std::vector<double>& pressure,
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std::vector<double>& faceflux,
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std::vector<double>& well_bhp,
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std::vector<double>& well_rate);
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/// Expose read-only reference to internal half-transmissibility.
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const ::std::vector<double>& getHalfTrans() const { return htrans_; }
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private:
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const UnstructuredGrid& grid_;
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const LinearSolverInterface& linsolver_;
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::std::vector<double> htrans_;
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::std::vector<double> trans_ ;
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::std::vector<double> gpress_;
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::std::vector<double> gpress_omegaweighted_;
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const struct Wells* wells_;
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struct ifs_tpfa_data* h_;
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};
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} // namespace Opm
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#endif // OPM_INCOMPTPFA_HEADER_INCLUDED
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