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Fix mixture calculation for volatile oil case.

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This commit is contained in:
Atgeirr Flø Rasmussen 2014-01-23 12:40:54 +01:00
parent ac6209640b
commit 98371f660f
1 changed files with 9 additions and 5 deletions
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14
opm/autodiff/SegmentedWellModel.cpp
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@ -121,18 +121,22 @@ std::vector<double> Opm::SegmentedWellModel::computeConnectionPressureDelta(cons
double rs = 0.0; double rs = 0.0;
double rv = 0.0; double rv = 0.0;
if (!rsmax_perf.empty() && mix[oilpos] > 0.0) { if (!rsmax_perf.empty() && mix[oilpos] > 0.0) {
// Subtract gas in oil from gas mixture
rs = std::min(mix[gaspos]/mix[oilpos], rsmax_perf[perf]); rs = std::min(mix[gaspos]/mix[oilpos], rsmax_perf[perf]);
x[gaspos] = mix[gaspos] - mix[oilpos]*rs;
} }
if (!rvmax_perf.empty() && mix[gaspos] > 0.0) { if (!rvmax_perf.empty() && mix[gaspos] > 0.0) {
// Subtract oil in gas from oil mixture
rv = std::min(mix[oilpos]/mix[gaspos], rvmax_perf[perf]); rv = std::min(mix[oilpos]/mix[gaspos], rvmax_perf[perf]);
x[oilpos] = mix[oilpos] - mix[gaspos]*rv; }
if (rs != 0.0) {
// Subtract gas in oil from gas mixture
x[gaspos] = (mix[gaspos] - mix[oilpos]*rs)/(1.0 - rs*rv);
}
if (rv != 0.0) {
// Subtract oil in gas from oil mixture
x[oilpos] = (mix[oilpos] - mix[gaspos]*rv)/(1.0 - rs*rv);;
} }
double volrat = 0.0; double volrat = 0.0;
for (int phase = 0; phase < np; ++phase) { for (int phase = 0; phase < np; ++phase) {
volrat += x[phase] / (b_perf[perf*np + phase] * (1.0 - rs*rv)); volrat += x[phase] / b_perf[perf*np + phase];
} }
// Compute segment density. // Compute segment density.
dens[perf] = std::inner_product(surf_dens.begin(), surf_dens.end(), mix.begin(), 0.0) / volrat; dens[perf] = std::inner_product(surf_dens.begin(), surf_dens.end(), mix.begin(), 0.0) / volrat;