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187 lines
8.2 KiB
C++
187 lines
8.2 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 <opm/core/pressure/tpfa/ifs_tpfa.h>
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#include <vector>
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struct UnstructuredGrid;
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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 IncompPropertiesInterface;
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class RockCompressibility;
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class LinearSolverInterface;
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class TwophaseState;
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class WellState;
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/// Encapsulating a tpfa pressure solver for the incompressible-fluid case.
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/// Supports gravity, wells controlled by bhp or reservoir rates,
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/// boundary conditions and simple sources as driving forces.
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/// Rock compressibility can be included, and necessary nonlinear
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/// iterations are handled.
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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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class IncompTpfa
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{
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public:
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/// Construct solver for incompressible case.
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/// \param[in] grid A 2d or 3d grid.
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/// \param[in] props Rock and fluid properties.
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/// \param[in] linsolver Linear solver to use.
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/// \param[in] gravity Gravity vector. If non-null, 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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/// Note: this class observes the well object, and
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/// makes the assumption that the well topology
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/// and completions does not change during the
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/// run. However, controls (only) are allowed
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/// to change.
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/// \param[in] src Source terms. May be empty().
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/// \param[in] bcs Boundary conditions, treat as all noflow if null.
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IncompTpfa(const UnstructuredGrid& grid,
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const IncompPropertiesInterface& props,
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LinearSolverInterface& linsolver,
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const double* gravity,
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const Wells* wells,
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const std::vector<double>& src,
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const FlowBoundaryConditions* bcs);
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/// Construct solver, possibly with rock compressibility.
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/// \param[in] grid A 2d or 3d grid.
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/// \param[in] props Rock and fluid properties.
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/// \param[in] rock_comp_props Rock compressibility properties. May be null.
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/// \param[in] linsolver Linear solver to use.
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/// \param[in] residual_tol Solution accepted if inf-norm of residual is smaller.
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/// \param[in] change_tol Solution accepted if inf-norm of change in pressure is smaller.
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/// \param[in] maxiter Maximum acceptable number of iterations.
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/// \param[in] gravity Gravity vector. If non-null, 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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/// Note: this class observes the well object, and
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/// makes the assumption that the well topology
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/// and completions does not change during the
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/// run. However, controls (only) are allowed
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/// to change.
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/// \param[in] src Source terms. May be empty().
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/// \param[in] bcs Boundary conditions, treat as all noflow if null.
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IncompTpfa(const UnstructuredGrid& grid,
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const IncompPropertiesInterface& props,
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const RockCompressibility* rock_comp_props,
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LinearSolverInterface& linsolver,
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const double residual_tol,
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const double change_tol,
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const int maxiter,
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const double* gravity,
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const Wells* wells,
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const std::vector<double>& src,
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const FlowBoundaryConditions* bcs);
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/// Destructor.
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virtual ~IncompTpfa();
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/// Solve the pressure equation. If there is no pressure
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/// dependency introduced by rock compressibility effects,
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/// the equation is linear, and it is solved directly.
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/// Otherwise, the nonlinear equations ares solved by a
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/// Newton-Raphson scheme.
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/// May throw an exception if the number of iterations
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/// exceed maxiter (set in constructor).
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void solve(const double dt,
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TwophaseState& state,
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WellState& well_state);
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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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protected:
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// Solve with no rock compressibility (linear eqn).
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void solveIncomp(const double dt,
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TwophaseState& state,
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WellState& well_state);
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// Solve with rock compressibility (nonlinear eqn).
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void solveRockComp(const double dt,
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TwophaseState& state,
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WellState& well_state);
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private:
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// Helper functions.
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void computeStaticData();
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virtual void computePerSolveDynamicData(const double dt,
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const TwophaseState& state,
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const WellState& well_state);
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void computePerIterationDynamicData(const double dt,
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const TwophaseState& state,
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const WellState& well_state);
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void assemble(const double dt,
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const TwophaseState& state,
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const WellState& well_state);
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void solveIncrement();
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double residualNorm() const;
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double incrementNorm() const;
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void computeResults(TwophaseState& state,
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WellState& well_state) const;
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protected:
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// ------ Data that will remain unmodified after construction. ------
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const UnstructuredGrid& grid_;
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const IncompPropertiesInterface& props_;
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const RockCompressibility* rock_comp_props_;
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const LinearSolverInterface& linsolver_;
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const double residual_tol_;
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const double change_tol_;
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const int maxiter_;
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const double* gravity_; // May be NULL
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const Wells* wells_; // May be NULL, outside may modify controls (only) between calls to solve().
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const std::vector<double>& src_;
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const FlowBoundaryConditions* bcs_;
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std::vector<double> htrans_;
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std::vector<double> gpress_;
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std::vector<int> allcells_;
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// ------ Data that will be modified for every solve. ------
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std::vector<double> trans_ ;
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std::vector<double> wdp_;
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std::vector<double> totmob_;
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std::vector<double> omega_;
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std::vector<double> gpress_omegaweighted_;
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std::vector<double> initial_porevol_;
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struct ifs_tpfa_forces forces_;
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// ------ Data that will be modified for every solver iteration. ------
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std::vector<double> porevol_;
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std::vector<double> rock_comp_;
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std::vector<double> pressures_;
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// ------ Internal data for the ifs_tpfa solver. ------
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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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