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6c859836f3
For cells with swat == 1 Ecl outputs; rs = rsSat and rv=rvSat, in all but the initial step where it outputs rs and rv values calculated by the initialization. To be compatible we overwrite rs and rv with the values passed by the localState. Volume factors and densities needs to be recalculated with the updated rs and rv values.
306 lines
13 KiB
C++
306 lines
13 KiB
C++
/*
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Copyright 2015, 2016 SINTEF ICT, Applied Mathematics.
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Copyright 2016 Statoil AS.
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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_BLACKOILSEQUENTIALMODEL_HEADER_INCLUDED
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#define OPM_BLACKOILSEQUENTIALMODEL_HEADER_INCLUDED
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#include <opm/autodiff/BlackoilModelBase.hpp>
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#include <opm/autodiff/BlackoilPressureModel.hpp>
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#include <opm/autodiff/BlackoilTransportModel.hpp>
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#include <opm/core/simulator/BlackoilState.hpp>
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#include <opm/autodiff/WellStateFullyImplicitBlackoil.hpp>
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#include <opm/autodiff/BlackoilModelParameters.hpp>
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#include <opm/simulators/timestepping/SimulatorTimerInterface.hpp>
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namespace Opm {
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struct BlackoilSequentialModelParameters : public BlackoilModelParameters
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{
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bool iterate_to_fully_implicit;
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explicit BlackoilSequentialModelParameters( const parameter::ParameterGroup& param )
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: BlackoilModelParameters(param),
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iterate_to_fully_implicit(param.getDefault("iterate_to_fully_implicit", false))
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{
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}
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};
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/// A sequential splitting model implementation for three-phase black oil.
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template<class Grid, class WellModel>
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class BlackoilSequentialModel
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{
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public:
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typedef BlackoilState ReservoirState;
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typedef WellStateFullyImplicitBlackoil WellState;
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typedef BlackoilSequentialModelParameters ModelParameters;
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typedef DefaultBlackoilSolutionState SolutionState;
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typedef BlackoilPressureModel<Grid, WellModel> PressureModel;
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typedef BlackoilTransportModel<Grid, WellModel> TransportModel;
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typedef typename TransportModel::SimulatorData SimulatorData;
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typedef typename TransportModel::FIPDataType FIPDataType;
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/// Construct the model. It will retain references to the
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/// arguments of this functions, and they are expected to
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/// remain in scope for the lifetime of the solver.
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/// \param[in] param parameters
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/// \param[in] grid grid data structure
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/// \param[in] fluid fluid properties
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/// \param[in] geo rock properties
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/// \param[in] rock_comp_props if non-null, rock compressibility properties
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/// \param[in] wells well structure
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/// \param[in] vfp_properties Vertical flow performance tables
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/// \param[in] linsolver linear solver
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/// \param[in] eclState eclipse state
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/// \param[in] has_disgas turn on dissolved gas
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/// \param[in] has_vapoil turn on vaporized oil feature
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/// \param[in] terminal_output request output to cout/cerr
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BlackoilSequentialModel(const ModelParameters& param,
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const Grid& grid ,
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const BlackoilPropsAdFromDeck& fluid,
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const DerivedGeology& geo ,
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const RockCompressibility* rock_comp_props,
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const WellModel well_model,
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const NewtonIterationBlackoilInterface& linsolver,
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std::shared_ptr< const EclipseState > eclState,
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const bool has_disgas,
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const bool has_vapoil,
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const bool terminal_output)
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: pressure_model_(new PressureModel(param, grid, fluid, geo, rock_comp_props, well_model,
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linsolver, eclState, has_disgas, has_vapoil, terminal_output)),
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transport_model_(new TransportModel(param, grid, fluid, geo, rock_comp_props, well_model,
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linsolver, eclState, has_disgas, has_vapoil, terminal_output)),
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pressure_solver_(typename PressureSolver::SolverParameters(), std::move(pressure_model_)),
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transport_solver_(typename TransportSolver::SolverParameters(), std::move(transport_model_)),
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initial_reservoir_state_(0, 0, 0), // will be overwritten
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iterate_to_fully_implicit_(param.iterate_to_fully_implicit)
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{
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}
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/// Called once before each time step.
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/// \param[in] timer simulation timer
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/// \param[in] reservoir_state reservoir state variables
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/// \param[in] well_state well state variables
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void prepareStep(const SimulatorTimerInterface& /*timer*/,
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const ReservoirState& reservoir_state,
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const WellState& well_state)
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{
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initial_reservoir_state_ = reservoir_state;
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initial_well_state_ = well_state;
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}
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/// Called once per nonlinear iteration.
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/// This model will first solve the pressure model to convergence, then the
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/// transport model.
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/// \param[in] iteration should be 0 for the first call of a new timestep
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/// \param[in] timer simulation timer
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/// \param[in] nonlinear_solver nonlinear solver used (for oscillation/relaxation control)
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/// \param[in, out] reservoir_state reservoir state variables
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/// \param[in, out] well_state well state variables
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template <class NonlinearSolverType>
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SimulatorReport nonlinearIteration(const int iteration,
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const SimulatorTimerInterface& timer,
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NonlinearSolverType& /* nonlinear_solver */,
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ReservoirState& reservoir_state,
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WellState& well_state)
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{
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if (!iterate_to_fully_implicit_) {
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// Do a single pressure solve, followed by a single transport solve.
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if (terminalOutputEnabled()) {
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OpmLog::info("Using sequential model.");
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}
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// Pressure solve.
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if (terminalOutputEnabled()) {
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OpmLog::info("Solving the pressure equation.");
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}
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ReservoirState initial_state = reservoir_state;
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const SimulatorReport pressure_report = pressure_solver_.step(timer, reservoir_state, well_state);
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const int pressure_liniter = pressure_report.total_linear_iterations;
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if (pressure_liniter == -1) {
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OPM_THROW(std::runtime_error, "Pressure solver failed to converge.");
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}
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// Transport solve.
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if (terminalOutputEnabled()) {
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OpmLog::info("Solving the transport equations.");
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}
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const SimulatorReport transport_report = transport_solver_.step(timer, initial_state, well_state, reservoir_state, well_state);
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const int transport_liniter = transport_report.total_linear_iterations;
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if (transport_liniter == -1) {
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OPM_THROW(std::runtime_error, "Transport solver failed to converge.");
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}
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// Report and return.
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SimulatorReport report;
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report.converged = true;
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report.total_linear_iterations = pressure_liniter + transport_liniter;
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return report;
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} else {
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// Iterate to fully implicit solution.
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// This call is just for a single iteration (one pressure and one transport solve),
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// we return a 'false' converged status if more are needed
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if (terminalOutputEnabled()) {
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OpmLog::info("Using sequential model in iterative mode, outer iteration " + std::to_string(iteration));
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}
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// Pressure solve.
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if (terminalOutputEnabled()) {
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OpmLog::info("Solving the pressure equation.");
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}
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const SimulatorReport& pressure_report = pressure_solver_.step(timer, initial_reservoir_state_, initial_well_state_, reservoir_state, well_state);
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const int pressure_liniter = pressure_report.total_linear_iterations;
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if (pressure_liniter == -1) {
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OPM_THROW(std::runtime_error, "Pressure solver failed to converge.");
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}
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// Transport solve.
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if (terminalOutputEnabled()) {
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OpmLog::info("Solving the transport equations.");
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}
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const SimulatorReport& transport_report = transport_solver_.step(timer, initial_reservoir_state_, initial_well_state_, reservoir_state, well_state);
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const int transport_liniter = transport_report.total_linear_iterations;
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if (transport_liniter == -1) {
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OPM_THROW(std::runtime_error, "Transport solver failed to converge.");
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}
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SimulatorReport report;
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report.converged = iteration >= 3; // TODO: replace this with a proper convergence check
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report.total_linear_iterations = pressure_liniter + transport_liniter;
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return report;
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}
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}
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/// Called once after each time step.
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/// In this class, this function does nothing.
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/// \param[in] timer simulation timer
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/// \param[in, out] reservoir_state reservoir state variables
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/// \param[in, out] well_state well state variables
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void afterStep(const SimulatorTimerInterface& /* timer */,
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ReservoirState& /* reservoir_state */,
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WellState& /* well_state */)
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{
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}
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/// \brief Set threshold pressures that prevent or reduce flow.
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/// This prevents flow across faces if the potential
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/// difference is less than the threshold. If the potential
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/// difference is greater, the threshold value is subtracted
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/// before calculating flow. This is treated symmetrically, so
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/// flow is prevented or reduced in both directions equally.
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/// \param[in] threshold_pressures_by_face array of size equal to the number of faces
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/// of the grid passed in the constructor.
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void setThresholdPressures(const std::vector<double>& threshold_pressures_by_face)
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{
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pressure_solver_.model().setThresholdPressures(threshold_pressures_by_face);
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transport_solver_.model().setThresholdPressures(threshold_pressures_by_face);
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}
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/// Return true if output to cout is wanted.
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bool terminalOutputEnabled() const
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{
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return pressure_solver_.model().terminalOutputEnabled();
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}
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/// Return the relative change in variables relevant to this model.
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double relativeChange(const SimulationDataContainer& previous,
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const SimulationDataContainer& current ) const
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{
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// TODO: this is a quick stopgap implementation, and should be evaluated more carefully.
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return std::max(pressure_solver_.model().relativeChange(previous, current),
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transport_solver_.model().relativeChange(previous, current));
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}
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/// Return the well model
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const WellModel& wellModel() const
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{
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return pressure_solver_.model().wellModel();
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}
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/// Compute fluid in place.
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/// \param[in] ReservoirState
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/// \param[in] FIPNUM for active cells not global cells.
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/// \return fluid in place, number of fip regions, each region contains 5 values which are liquid, vapour, water, free gas and dissolved gas.
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std::vector<std::vector<double> >
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computeFluidInPlace(const ReservoirState& x,
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const std::vector<int>& fipnum) const
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{
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return transport_solver_.computeFluidInPlace(x, fipnum);
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}
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/// Return reservoir simulation data (for output functionality)
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const SimulatorData& getSimulatorData(const SimulationDataContainer& localState) const {
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return transport_solver_.model().getSimulatorData(localState);
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}
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/// Return fluid-in-place data (for output functionality)
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FIPDataType getFIPData() const {
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return transport_solver_.model().getFIPData();
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}
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protected:
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typedef NonlinearSolver<PressureModel> PressureSolver;
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typedef NonlinearSolver<TransportModel> TransportSolver;
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std::unique_ptr<PressureModel> pressure_model_;
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std::unique_ptr<TransportModel> transport_model_;
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PressureSolver pressure_solver_;
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TransportSolver transport_solver_;
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ReservoirState initial_reservoir_state_;
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WellState initial_well_state_;
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bool iterate_to_fully_implicit_;
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};
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} // namespace Opm
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#endif // OPM_BLACKOILSEQUENTIALMODEL_HEADER_INCLUDED
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