/// Compute the output.
void CompressibleTpfa::computeResults(BlackoilState& state,
WellState& well_state) const
{
UnstructuredGrid* gg = const_cast<UnstructuredGrid*>(&grid_);
CompletionData completion_data;
completion_data.wdp = ! wellperf_wdp_.empty() ? const_cast<double*>(&wellperf_wdp_[0]) : 0;
completion_data.A = ! wellperf_A_.empty() ? const_cast<double*>(&wellperf_A_[0]) : 0;
completion_data.phasemob = ! wellperf_phasemob_.empty() ? const_cast<double*>(&wellperf_phasemob_[0]) : 0;
cfs_tpfa_res_wells wells_tmp;
wells_tmp.W = const_cast<Wells*>(wells_);
wells_tmp.data = &completion_data;
cfs_tpfa_res_forces forces;
forces.wells = &wells_tmp;
forces.src = NULL;
double* wpress = ! well_state.bhp ().empty() ? & well_state.bhp ()[0] : 0;
double* wflux = ! well_state.perfRates().empty() ? & well_state.perfRates()[0] : 0;
cfs_tpfa_res_flux(gg,
&forces,
props_.numPhases(),
&trans_[0],
&cell_phasemob_[0],
&face_phasemob_[0],
&face_gravcap_[0],
&state.pressure()[0],
wpress,
&state.faceflux()[0],
wflux);
cfs_tpfa_res_fpress(gg,
props_.numPhases(),
&htrans_[0],
&face_phasemob_[0],
&face_gravcap_[0],
h_,
&state.pressure()[0],
&state.faceflux()[0],
&state.facepressure()[0]);
// Compute well perforation pressures (not done by the C code).
if (wells_ != 0) {
const int nw = wells_->number_of_wells;
for (int w = 0; w < nw; ++w) {
for (int j = wells_->well_connpos[w]; j < wells_->well_connpos[w+1]; ++j) {
const double bhp = well_state.bhp()[w];
well_state.perfPress()[j] = bhp + wellperf_wdp_[j];
}
}
}
}
bool equals(const BlackoilState& other, double epsilon = 1e-8) const {
bool equal = (numPhases() == other.numPhases());
for (int phaseIdx = 0; phaseIdx < BlackoilPhases::MaxNumPhases; ++ phaseIdx) {
equal = equal && (usedPhases_.phase_used[phaseIdx] == other.usedPhases_.phase_used[phaseIdx]);
if (usedPhases_.phase_used[phaseIdx])
equal = equal && (usedPhases_.phase_pos[phaseIdx] == other.usedPhases_.phase_pos[phaseIdx]);
}
equal = equal && (vectorApproxEqual( pressure() , other.pressure() , epsilon));
equal = equal && (vectorApproxEqual( facepressure() , other.facepressure() , epsilon));
equal = equal && (vectorApproxEqual( faceflux() , other.faceflux() , epsilon));
equal = equal && (vectorApproxEqual( surfacevol() , other.surfacevol() , epsilon));
equal = equal && (vectorApproxEqual( saturation() , other.saturation() , epsilon));
equal = equal && (vectorApproxEqual( gasoilratio() , other.gasoilratio() , epsilon));
return equal;
}
SimulatorReport SimulatorCompressibleTwophase::Impl::run(SimulatorTimer& timer,
BlackoilState& state,
WellState& well_state)
{
std::vector<double> transport_src;
// Initialisation.
std::vector<double> porevol;
if (rock_comp_props_ && rock_comp_props_->isActive()) {
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
} else {
computePorevolume(grid_, props_.porosity(), porevol);
}
const double tot_porevol_init = std::accumulate(porevol.begin(), porevol.end(), 0.0);
std::vector<double> initial_porevol = porevol;
// Main simulation loop.
Opm::time::StopWatch pressure_timer;
double ptime = 0.0;
Opm::time::StopWatch transport_timer;
double ttime = 0.0;
Opm::time::StopWatch step_timer;
Opm::time::StopWatch total_timer;
total_timer.start();
double init_surfvol[2] = { 0.0 };
double inplace_surfvol[2] = { 0.0 };
double tot_injected[2] = { 0.0 };
double tot_produced[2] = { 0.0 };
Opm::computeSaturatedVol(porevol, state.surfacevol(), init_surfvol);
Opm::Watercut watercut;
watercut.push(0.0, 0.0, 0.0);
Opm::WellReport wellreport;
std::vector<double> fractional_flows;
std::vector<double> well_resflows_phase;
if (wells_) {
well_resflows_phase.resize((wells_->number_of_phases)*(wells_->number_of_wells), 0.0);
wellreport.push(props_, *wells_,
state.pressure(), state.surfacevol(), state.saturation(),
0.0, well_state.bhp(), well_state.perfRates());
}
std::fstream tstep_os;
if (output_) {
std::string filename = output_dir_ + "/step_timing.param";
tstep_os.open(filename.c_str(), std::fstream::out | std::fstream::app);
}
for (; !timer.done(); ++timer) {
// Report timestep and (optionally) write state to disk.
step_timer.start();
timer.report(std::cout);
if (output_ && (timer.currentStepNum() % output_interval_ == 0)) {
if (output_vtk_) {
outputStateVtk(grid_, state, timer.currentStepNum(), output_dir_);
}
outputStateMatlab(grid_, state, timer.currentStepNum(), output_dir_);
}
SimulatorReport sreport;
// Solve pressure equation.
if (check_well_controls_) {
computeFractionalFlow(props_, allcells_,
state.pressure(), state.temperature(), state.surfacevol(), state.saturation(),
fractional_flows);
wells_manager_.applyExplicitReinjectionControls(well_resflows_phase, well_resflows_phase);
}
bool well_control_passed = !check_well_controls_;
int well_control_iteration = 0;
do {
// Run solver.
pressure_timer.start();
std::vector<double> initial_pressure = state.pressure();
psolver_.solve(timer.currentStepLength(), state, well_state);
// Renormalize pressure if both fluids and rock are
// incompressible, and there are no pressure
// conditions (bcs or wells). It is deemed sufficient
// for now to renormalize using geometric volume
// instead of pore volume.
if (psolver_.singularPressure()) {
// Compute average pressures of previous and last
// step, and total volume.
double av_prev_press = 0.0;
double av_press = 0.0;
double tot_vol = 0.0;
const int num_cells = grid_.number_of_cells;
for (int cell = 0; cell < num_cells; ++cell) {
av_prev_press += initial_pressure[cell]*grid_.cell_volumes[cell];
av_press += state.pressure()[cell]*grid_.cell_volumes[cell];
tot_vol += grid_.cell_volumes[cell];
}
// Renormalization constant
const double ren_const = (av_prev_press - av_press)/tot_vol;
for (int cell = 0; cell < num_cells; ++cell) {
state.pressure()[cell] += ren_const;
}
const int num_wells = (wells_ == NULL) ? 0 : wells_->number_of_wells;
for (int well = 0; well < num_wells; ++well) {
well_state.bhp()[well] += ren_const;
}
}
// Stop timer and report.
pressure_timer.stop();
double pt = pressure_timer.secsSinceStart();
std::cout << "Pressure solver took: " << pt << " seconds." << std::endl;
ptime += pt;
sreport.pressure_time = pt;
// Optionally, check if well controls are satisfied.
if (check_well_controls_) {
Opm::computePhaseFlowRatesPerWell(*wells_,
well_state.perfRates(),
fractional_flows,
well_resflows_phase);
std::cout << "Checking well conditions." << std::endl;
// For testing we set surface := reservoir
well_control_passed = wells_manager_.conditionsMet(well_state.bhp(), well_resflows_phase, well_resflows_phase);
++well_control_iteration;
if (!well_control_passed && well_control_iteration > max_well_control_iterations_) {
OPM_THROW(std::runtime_error, "Could not satisfy well conditions in " << max_well_control_iterations_ << " tries.");
}
if (!well_control_passed) {
std::cout << "Well controls not passed, solving again." << std::endl;
} else {
std::cout << "Well conditions met." << std::endl;
}
}
} while (!well_control_passed);
// Update pore volumes if rock is compressible.
if (rock_comp_props_ && rock_comp_props_->isActive()) {
initial_porevol = porevol;
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
}
// Process transport sources from well flows.
Opm::computeTransportSource(props_, wells_, well_state, transport_src);
// Solve transport.
transport_timer.start();
double stepsize = timer.currentStepLength();
if (num_transport_substeps_ != 1) {
stepsize /= double(num_transport_substeps_);
std::cout << "Making " << num_transport_substeps_ << " transport substeps." << std::endl;
}
double injected[2] = { 0.0 };
double produced[2] = { 0.0 };
for (int tr_substep = 0; tr_substep < num_transport_substeps_; ++tr_substep) {
tsolver_.solve(&state.faceflux()[0], &state.pressure()[0], &state.temperature()[0],
&initial_porevol[0], &porevol[0], &transport_src[0], stepsize,
state.saturation(), state.surfacevol());
double substep_injected[2] = { 0.0 };
double substep_produced[2] = { 0.0 };
Opm::computeInjectedProduced(props_, state, transport_src, stepsize,
substep_injected, substep_produced);
injected[0] += substep_injected[0];
injected[1] += substep_injected[1];
produced[0] += substep_produced[0];
produced[1] += substep_produced[1];
if (gravity_ != 0 && use_segregation_split_) {
tsolver_.solveGravity(columns_, stepsize, state.saturation(), state.surfacevol());
}
}
transport_timer.stop();
double tt = transport_timer.secsSinceStart();
sreport.transport_time = tt;
std::cout << "Transport solver took: " << tt << " seconds." << std::endl;
ttime += tt;
// Report volume balances.
Opm::computeSaturatedVol(porevol, state.surfacevol(), inplace_surfvol);
tot_injected[0] += injected[0];
tot_injected[1] += injected[1];
tot_produced[0] += produced[0];
tot_produced[1] += produced[1];
std::cout.precision(5);
const int width = 18;
std::cout << "\nMass balance report.\n";
std::cout << " Injected surface volumes: "
<< std::setw(width) << injected[0]
<< std::setw(width) << injected[1] << std::endl;
std::cout << " Produced surface volumes: "
<< std::setw(width) << produced[0]
<< std::setw(width) << produced[1] << std::endl;
std::cout << " Total inj surface volumes: "
<< std::setw(width) << tot_injected[0]
<< std::setw(width) << tot_injected[1] << std::endl;
std::cout << " Total prod surface volumes: "
<< std::setw(width) << tot_produced[0]
<< std::setw(width) << tot_produced[1] << std::endl;
const double balance[2] = { init_surfvol[0] - inplace_surfvol[0] - tot_produced[0] + tot_injected[0],
init_surfvol[1] - inplace_surfvol[1] - tot_produced[1] + tot_injected[1] };
std::cout << " Initial - inplace + inj - prod: "
<< std::setw(width) << balance[0]
<< std::setw(width) << balance[1]
<< std::endl;
std::cout << " Relative mass error: "
<< std::setw(width) << balance[0]/(init_surfvol[0] + tot_injected[0])
<< std::setw(width) << balance[1]/(init_surfvol[1] + tot_injected[1])
<< std::endl;
std::cout.precision(8);
watercut.push(timer.simulationTimeElapsed() + timer.currentStepLength(),
produced[0]/(produced[0] + produced[1]),
tot_produced[0]/tot_porevol_init);
if (wells_) {
wellreport.push(props_, *wells_,
state.pressure(), state.surfacevol(), state.saturation(),
timer.simulationTimeElapsed() + timer.currentStepLength(),
well_state.bhp(), well_state.perfRates());
}
sreport.total_time = step_timer.secsSinceStart();
if (output_) {
sreport.reportParam(tstep_os);
}
}
if (output_) {
if (output_vtk_) {
outputStateVtk(grid_, state, timer.currentStepNum(), output_dir_);
}
outputStateMatlab(grid_, state, timer.currentStepNum(), output_dir_);
outputWaterCut(watercut, output_dir_);
if (wells_) {
outputWellReport(wellreport, output_dir_);
}
tstep_os.close();
}
total_timer.stop();
SimulatorReport report;
report.pressure_time = ptime;
report.transport_time = ttime;
report.total_time = total_timer.secsSinceStart();
return report;
}
