// Solve with no rock compressibility (linear eqn).
void IncompTpfa::solveIncomp(const double dt,
SimulatorState& state,
WellState& well_state)
{
// Set up properties.
computePerSolveDynamicData(dt, state, well_state);
// Assemble.
UnstructuredGrid* gg = const_cast<UnstructuredGrid*>(&grid_);
int ok = ifs_tpfa_assemble(gg, &forces_, &trans_[0], &gpress_omegaweighted_[0], h_);
if (!ok) {
OPM_THROW(std::runtime_error, "Failed assembling pressure system.");
}
// Solve.
linsolver_.solve(h_->A, h_->b, h_->x);
// Obtain solution.
assert(int(state.pressure().size()) == grid_.number_of_cells);
assert(int(state.faceflux().size()) == grid_.number_of_faces);
ifs_tpfa_solution soln = { NULL, NULL, NULL, NULL };
soln.cell_press = &state.pressure()[0];
soln.face_flux = &state.faceflux()[0];
if (wells_ != NULL) {
assert(int(well_state.bhp().size()) == wells_->number_of_wells);
assert(int(well_state.perfRates().size()) == wells_->well_connpos[ wells_->number_of_wells ]);
soln.well_flux = &well_state.perfRates()[0];
soln.well_press = &well_state.bhp()[0];
}
ifs_tpfa_press_flux(gg, &forces_, &trans_[0], h_, &soln);
}
/// Compute the output.
void IncompTpfa::computeResults(SimulatorState& state,
WellState& well_state) const
{
// Make sure h_ contains the direct-solution matrix
// and right hand side (not jacobian and residual).
// TODO: optimize by only adjusting b and diagonal of A.
UnstructuredGrid* gg = const_cast<UnstructuredGrid*>(&grid_);
ifs_tpfa_assemble(gg, &forces_, &trans_[0], &gpress_omegaweighted_[0], h_);
// Make sure h_->x contains the direct solution vector.
assert(int(state.pressure().size()) == grid_.number_of_cells);
assert(int(state.faceflux().size()) == grid_.number_of_faces);
std::copy(state.pressure().begin(), state.pressure().end(), h_->x);
std::copy(well_state.bhp().begin(), well_state.bhp().end(), h_->x + grid_.number_of_cells);
// Obtain solution.
ifs_tpfa_solution soln = { NULL, NULL, NULL, NULL };
soln.cell_press = &state.pressure()[0];
soln.face_flux = &state.faceflux()[0];
if (wells_ != NULL) {
assert(int(well_state.bhp().size()) == wells_->number_of_wells);
assert(int(well_state.perfRates().size()) == wells_->well_connpos[ wells_->number_of_wells ]);
soln.well_flux = &well_state.perfRates()[0];
soln.well_press = &well_state.bhp()[0];
}
ifs_tpfa_press_flux(gg, &forces_, &trans_[0], h_, &soln); // TODO: Check what parts of h_ are used here.
}
bool
SimulatorState::equals (const SimulatorState& other,
double epsilon) const {
bool equal = (num_phases_ == other.num_phases_);
// if we use &=, then all the tests will be run regardless
equal = equal && vectorApproxEqual( pressure() , other.pressure() , epsilon);
equal = equal && vectorApproxEqual( temperature() , other.temperature() , epsilon);
equal = equal && vectorApproxEqual( facepressure() , other.facepressure() , epsilon);
equal = equal && vectorApproxEqual( faceflux() , other.faceflux() , epsilon);
equal = equal && vectorApproxEqual( saturation() , other.saturation() , epsilon);
return equal;
}
