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FullyImplicitBlackoilSolver: make constantState() and variableState() consistent

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With this, constantState() just calls variableState() and throws away
the derivatives. This might be a bit slower than necessary, but it
makes these two methods automatically consistent and constantState()
is only called once per timestep anyway...

thanks to @atgeirr for the suggestion!
This commit is contained in:
Andreas Lauser 2014-03-25 11:52:13 +01:00
parent cdeac8eed8
commit 9237aa2443
1 changed files with 12 additions and 83 deletions
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95
opm/autodiff/FullyImplicitBlackoilSolver.cpp
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@ -333,90 +333,19 @@ namespace {
FullyImplicitBlackoilSolver::constantState(const BlackoilState& x,
const WellStateFullyImplicitBlackoil& xw)
{
const int nc = grid_.number_of_cells;
const int np = x.numPhases();
auto state = variableState(x, xw);
// The block pattern assumes the following primary variables:
// pressure
// water saturation (if water present)
// gas saturation, Rv (vapor oil/gas ratio) or Rs (solution gas/oil ratio) depending on hydrocarbon state
// Gas only (undersaturated gas): Rv
// Gas and oil: Sg
// Oil only (undersaturated oil): Rs
// well rates per active phase and well
// well bottom-hole pressure
// Note that oil is assumed to always be present, but is never
// a primary variable.
assert(active_[ Oil ]);
std::vector<int> bpat(np, nc);
bpat.push_back(xw.bhp().size() * np);
bpat.push_back(xw.bhp().size());
SolutionState state(np);
// Pressure.
assert (not x.pressure().empty());
const V p = Eigen::Map<const V>(& x.pressure()[0], nc, 1);
state.pressure = ADB::constant(p, bpat);
// Saturation.
assert (not x.saturation().empty());
const DataBlock s = Eigen::Map<const DataBlock>(& x.saturation()[0], nc, np);
const Opm::PhaseUsage pu = fluid_.phaseUsage();
{
V so = V::Ones(nc, 1);
if (active_[ Water ]) {
const int pos = pu.phase_pos[ Water ];
const V sw = s.col(pos);
so -= sw;
state.saturation[pos] = ADB::constant(sw, bpat);
}
if (active_[ Gas ]) {
const int pos = pu.phase_pos[ Gas ];
const V sg = s.col(pos);
so -= sg;
state.saturation[pos] = ADB::constant(sg, bpat);
}
if (active_[ Oil ]) {
const int pos = pu.phase_pos[ Oil ];
state.saturation[pos] = ADB::constant(so, bpat);
}
}
// Solution Gas-oil ratio (rs).
if (active_[ Oil ] && active_[ Gas ]) {
const V rs = Eigen::Map<const V>(& x.gasoilratio()[0], x.gasoilratio().size());
state.rs = ADB::constant(rs, bpat);
} else {
const V Rs = V::Zero(nc, 1);
state.rs = ADB::constant(Rs, bpat);
}
// Vapor Oil-gas ratio (rv).
if (active_[ Oil ] && active_[ Gas ]) {
const V rv = Eigen::Map<const V>(& x.rv()[0], x.rv().size());
state.rv = ADB::constant(rv, bpat);
} else {
const V rv = V::Zero(nc, 1);
state.rv = ADB::constant(rv, bpat);
}
// Well rates.
assert (not xw.wellRates().empty());
// Need to reshuffle well rates, from ordered by wells, then phase,
// to ordered by phase, then wells.
const int nw = wells_.number_of_wells;
// The transpose() below switches the ordering.
const DataBlock wrates = Eigen::Map<const DataBlock>(& xw.wellRates()[0], nw, np).transpose();
const V qs = Eigen::Map<const V>(wrates.data(), nw*np);
state.qs = ADB::constant(qs, bpat);
// Well bottom-hole pressure.
assert (not xw.bhp().empty());
const V bhp = Eigen::Map<const V>(& xw.bhp()[0], xw.bhp().size());
state.bhp = ADB::constant(bhp, bpat);
// HACK: throw away the derivatives. this may not be the most
// performant way to do things, but it will make the state
// automatically consistent with variableState() (and doing
// things automatically is all the rage in this module ;)
state.pressure = ADB::constant(state.pressure.value());
state.rs = ADB::constant(state.rs.value());
state.rv = ADB::constant(state.rv.value());
for (int phaseIdx= 0; phaseIdx < x.numPhases(); ++ phaseIdx)
state.saturation[phaseIdx] = ADB::constant(state.saturation[phaseIdx].value());
state.qs = ADB::constant(state.qs.value());
state.bhp = ADB::constant(state.bhp.value());
return state;
}