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Merge pull request #139 from GitPaean/limited_variable_update

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Limited variable update
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Atgeirr Flø Rasmussen
2014-05-20 21:52:22 +02:00
parent 97f572f5d4 827cd7e8e4
commit 3e956a9659
4 changed files with 60 additions and 31 deletions
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76
opm/autodiff/FullyImplicitBlackoilSolver_impl.hpp
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@@ -35,6 +35,7 @@
#include <opm/core/utility/Exceptions.hpp>
#include <opm/core/utility/Units.hpp>
#include <opm/core/well_controls.h>
#include <opm/core/utility/parameters/ParameterGroup.hpp>
#include <cassert>
#include <cmath>
@@ -212,7 +213,8 @@ namespace {
template<class T>
FullyImplicitBlackoilSolver<T>::
FullyImplicitBlackoilSolver(const Grid& grid ,
FullyImplicitBlackoilSolver(const parameter::ParameterGroup& param,
const Grid& grid ,
const BlackoilPropsAdInterface& fluid,
const DerivedGeology& geo ,
const RockCompressibility* rock_comp_props,
@@ -230,17 +232,21 @@ namespace {
, ops_ (grid)
, wops_ (wells)
, grav_ (gravityOperator(grid_, ops_, geo_))
, dp_max_rel_ ( 1.0e9 )
, ds_max_ ( 0.2 )
, drs_max_rel_ ( 1.0e9 )
, rq_ (fluid.numPhases())
, phaseCondition_(AutoDiffGrid::numCells(grid))
, residual_ ( { std::vector<ADB>(fluid.numPhases(), ADB::null()),
ADB::null(),
ADB::null() } )
{
dp_max_rel_ = param.getDefault("dp_max_rel", dp_max_rel_);
ds_max_ = param.getDefault("ds_max", ds_max_);
drs_max_rel_ = param.getDefault("drs_max_rel", drs_max_rel_);
}
template<class T>
void
FullyImplicitBlackoilSolver<T>::
@@ -1230,7 +1236,7 @@ namespace {
assert(varstart == dx.size());
// Pressure update.
const double dpmaxrel = 0.8;
const double dpmaxrel = dpMaxRel();
const V p_old = Eigen::Map<const V>(&state.pressure()[0], nc, 1);
const V absdpmax = dpmaxrel*p_old.abs();
const V dp_limited = sign(dp) * dp.abs().min(absdpmax);
@@ -1241,40 +1247,53 @@ namespace {
// Saturation updates.
const Opm::PhaseUsage& pu = fluid_.phaseUsage();
const DataBlock s_old = Eigen::Map<const DataBlock>(& state.saturation()[0], nc, np);
const double dsmax = 0.3;
const double dsmax = dsMax();
V so = one;
V sw;
V sg;
if (active_[ Water ]) {
const int pos = pu.phase_pos[ Water ];
const V sw_old = s_old.col(pos);
const V dsw_limited = sign(dsw) * dsw.abs().min(dsmax);
sw = (sw_old - dsw_limited).unaryExpr(Chop01());
so -= sw;
for (int c = 0; c < nc; ++c) {
state.saturation()[c*np + pos] = sw[c];
{
V maxVal = zero;
V dso = zero;
if (active_[Water]){
maxVal = dsw.abs().max(maxVal);
dso = dso - dsw;
}
V dsg;
if (active_[Gas]){
dsg = isSg * dxvar - isRv * dsw;
maxVal = dsg.abs().max(maxVal);
dso = dso - dsg;
}
maxVal = dso.abs().max(maxVal);
V step = dsmax/maxVal;
step = step.min(1.);
if (active_[Water]) {
const int pos = pu.phase_pos[ Water ];
const V sw_old = s_old.col(pos);
sw = sw_old - step * dsw;
so -= sw;
}
if (active_[Gas]) {
const int pos = pu.phase_pos[ Gas ];
const V sg_old = s_old.col(pos);
sg = sg_old - step * dsg;
so -= sg;
}
}
V sg;
if (active_[Gas]) {
const int pos = pu.phase_pos[ Gas ];
const V sg_old = s_old.col(pos);
const V dsg = isSg * dxvar - isRv * dsw;
const V dsg_limited = sign(dsg) * dsg.abs().min(dsmax);
sg = sg_old - dsg_limited;
so -= sg;
}
const double drsmax = 1e9;
const double drsmaxrel = drsMaxRel();
const double drvmax = 1e9;//% same as in Mrst
V rs;
if (disgas) {
const V rs_old = Eigen::Map<const V>(&state.gasoilratio()[0], nc);
const V drs = isRs * dxvar;
const V drs_limited = sign(drs) * drs.abs().min(drsmax);
const V drs_limited = sign(drs) * drs.abs().min(rs_old.abs()*drsmaxrel);
rs = rs_old - drs_limited;
}
V rv;
@@ -1410,7 +1429,8 @@ namespace {
// Bhp update.
const V bhp_old = Eigen::Map<const V>(&well_state.bhp()[0], nw, 1);
const V bhp = bhp_old - dbhp;
const V dbhp_limited = sign(dbhp) * dbhp.abs().min(bhp_old.abs()*dpmaxrel);
const V bhp = bhp_old - dbhp_limited;
std::copy(&bhp[0], &bhp[0] + bhp.size(), well_state.bhp().begin());
}