/// Looks at presence of WATER, OIL and GAS keywords in state object
/// to determine active phases.
inline PhaseUsage phaseUsageFromDeck(const Opm::EclipseState& eclipseState)
{
PhaseUsage pu;
std::fill(pu.phase_used, pu.phase_used + BlackoilPhases::MaxNumPhases, 0);
const auto& phase = eclipseState.runspec().phases();
// Discover phase usage.
if (phase.active(Phase::WATER)) {
pu.phase_used[BlackoilPhases::Aqua] = 1;
}
if (phase.active(Phase::OIL)) {
pu.phase_used[BlackoilPhases::Liquid] = 1;
}
if (phase.active(Phase::GAS)) {
pu.phase_used[BlackoilPhases::Vapour] = 1;
}
pu.num_phases = 0;
for (int i = 0; i < BlackoilPhases::MaxNumPhases; ++i) {
pu.phase_pos[i] = pu.num_phases;
pu.num_phases += pu.phase_used[i];
}
// Only 2 or 3 phase systems handled.
if (pu.num_phases < 2 || pu.num_phases > 3) {
OPM_THROW(std::runtime_error, "Cannot handle cases with " << pu.num_phases << " phases.");
}
// We need oil systems, since we do not support the keywords needed for
// water-gas systems.
if (!pu.phase_used[BlackoilPhases::Liquid]) {
OPM_THROW(std::runtime_error, "Cannot handle cases with no OIL, i.e. water-gas systems.");
}
return pu;
}
/// Looks at presence of WATER, OIL and GAS keywords in state object
/// to determine active phases.
inline PhaseUsage phaseUsageFromDeck(const Opm::EclipseState& eclipseState)
{
const auto& phases = eclipseState.runspec().phases();
return phaseUsage(phases);
}