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Use default primary variable (Sg) for cells almost full of water

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Tor Harald Sandve 2014-08-18 12:28:25 +02:00
parent b1db55cbe8
commit 6ae3212341
1 changed files with 16 additions and 10 deletions
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26
opm/autodiff/FullyImplicitBlackoilSolver_impl.hpp
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@ -2052,29 +2052,35 @@ namespace {
const PhaseUsage& pu = fluid_.phaseUsage();
const DataBlock s = Eigen::Map<const DataBlock>(& state.saturation()[0], nc, np);
// Water/Oil/Gas system
assert (active_[ Gas ]);
// reset the primary variables if RV and RS is not set Sg is used as primary variable.
primalVariable_.resize(nc);
std::fill(primalVariable_.begin(), primalVariable_.end(), PrimalVariables::Sg);
if (has_disgas_) {
// Oil/Gas or Water/Oil/Gas system
const V sg = s.col(pu.phase_pos[ Gas ]);
const V so = s.col(pu.phase_pos[ Oil ]);
const V sg = s.col(pu.phase_pos[ Gas ]);
const V so = s.col(pu.phase_pos[ Oil ]);
const V sw = s.col(pu.phase_pos[ Water ]);
const double epsilon = std::sqrt(std::numeric_limits<double>::epsilon());
auto watOnly = sw > (1 - epsilon);
auto hasOil = so > 0;
auto hasGas = sg > 0;
// For oil only cells Rs is used as primal variable. For cells almost full of water
// the default primal variable (Sg) is used.
if (has_disgas_) {
for (V::Index c = 0, e = sg.size(); c != e; ++c) {
if ( sg[c] <= 0 && so[c] > 0 ) {primalVariable_[c] = PrimalVariables::RS; }
if ( !watOnly[c] && hasOil[c] && !hasGas[c] ) {primalVariable_[c] = PrimalVariables::RS; }
}
}
// For gas only cells Rv is used as primal variable. For cells almost full of water
// the default primal variable (Sg) is used.
if (has_vapoil_) {
// Oil/Gas or Water/Oil/Gas system
const V sg = s.col(pu.phase_pos[ Gas ]);
const V so = s.col(pu.phase_pos[ Oil ]);
for (V::Index c = 0, e = so.size(); c != e; ++c) {
if (so[c] <= 0 && sg[c] > 0) {primalVariable_[c] = PrimalVariables::RV; }
if ( !watOnly[c] && hasGas[c] && !hasOil[c] ) {primalVariable_[c] = PrimalVariables::RV; }
}
}
updatePhaseCondFromPrimalVariable();