void assign_bc(const GI& g, BCS& bcs)
{
typedef Dune::FlowBC BC;
typedef typename GI::CellIterator CI;
typedef typename CI::FaceIterator FI;
int max_bid = 0;
for (CI c = g.cellbegin(); c != g.cellend(); ++c) {
for (FI f = c->facebegin(); f != c->faceend(); ++f) {
int bid = f->boundaryId();
if (bid > max_bid) {
max_bid = bid;
bcs.resize(bid + 1);
}
bcs.flowCond(bid) = BC(BC::Dirichlet, u(f->centroid()));
}
}
}
inline void setupRegionBasedConditions(const Opm::parameter::ParameterGroup& param,
const GridInterface& g,
BCs& bcs)
{
// Extract region and pressure value for Dirichlet bcs.
typedef typename GridInterface::Vector Vector;
Vector low;
low[0] = param.getDefault("dir_block_low_x", 0.0);
low[1] = param.getDefault("dir_block_low_y", 0.0);
low[2] = param.getDefault("dir_block_low_z", 0.0);
Vector high;
high[0] = param.getDefault("dir_block_high_x", 1.0);
high[1] = param.getDefault("dir_block_high_y", 1.0);
high[2] = param.getDefault("dir_block_high_z", 1.0);
double dir_block_pressure = param.get<double>("dir_block_pressure");
// Set flow conditions for that region.
// For this to work correctly, unique boundary ids should be used,
// otherwise conditions may spread outside the given region, to all
// faces with the same bid as faces inside the region.
typedef typename GridInterface::CellIterator CI;
typedef typename CI::FaceIterator FI;
int max_bid = 0;
std::vector<int> dir_bids;
for (CI c = g.cellbegin(); c != g.cellend(); ++c) {
for (FI f = c->facebegin(); f != c->faceend(); ++f) {
int bid = f->boundaryId();
max_bid = std::max(bid, max_bid);
if (bid != 0 && isInside(low, high, f->centroid())) {
dir_bids.push_back(bid);
}
}
}
bcs.resize(max_bid + 1);
for (std::vector<int>::const_iterator it = dir_bids.begin(); it != dir_bids.end(); ++it) {
bcs.flowCond(*it) = FlowBC(FlowBC::Dirichlet, dir_block_pressure);
}
// Transport BCs are defaulted.
}
void findPeriodicPartners(std::vector<BoundaryFaceInfo>& bfinfo,
std::array<double, 6>& side_areas,
const GridView& g,
const std::array<bool, 2*GridView::dimension>& is_periodic,
double spatial_tolerance = 1e-6)
{
// Pick out all boundary faces, simultaneously find the
// bounding box of their centroids, and the max id.
const int dim = GridView::dimension;
typedef typename GridView::template Codim<0>::Iterator CI;
typedef typename GridView::IntersectionIterator FI;
typedef Dune::FieldVector<double, dim> Vector;
std::vector<FI> bface_iters;
Vector low(1e100);
Vector hi(-1e100);
int max_bid = 0;
for (CI c = g.template begin<0>(); c != g.template end<0>(); ++c) {
for (FI f = g.ibegin(*c); f != g.iend(*c); ++f) {
if (f->boundaryId()) {
bface_iters.push_back(f);
Vector fcent = f->geometry().center();
for (int dd = 0; dd < dim; ++dd) {
low[dd] = std::min(low[dd], fcent[dd]);
hi[dd] = std::max(hi[dd], fcent[dd]);
}
max_bid = std::max(max_bid, f->boundaryId());
}
}
}
int num_bdy = bface_iters.size();
if (max_bid != num_bdy) {
OPM_THROW(std::runtime_error, "createPeriodic() assumes that every boundary face has a unique boundary id. That seems to be violated.");
}
// Store boundary face info in a suitable structure. Also find side total volumes.
std::fill(side_areas.begin(), side_areas.end(), 0.0);
bfinfo.clear();
bfinfo.reserve(num_bdy);
for (int i = 0; i < num_bdy; ++i) {
BoundaryFaceInfo bf;
bf.face_index = i;
bf.bid = bface_iters[i]->boundaryId();
bf.canon_pos = -1;
bf.partner_face_index = -1;
bf.partner_bid = 0;
bf.area = bface_iters[i]->geometry().volume();
bf.centroid = bface_iters[i]->geometry().center();
for (int dd = 0; dd < dim; ++dd) {
double coord = bf.centroid[dd];
if (fabs(coord - low[dd]) <= spatial_tolerance) {
bf.canon_pos = 2*dd;
break;
} else if (fabs(coord - hi[dd]) <= spatial_tolerance) {
bf.canon_pos = 2*dd + 1;
break;
}
}
if (bf.canon_pos == -1) {
std::cerr << "Centroid: " << bf.centroid << "\n";
std::cerr << "Bounding box min: " << low << "\n";
std::cerr << "Bounding box max: " << hi << "\n";
OPM_THROW(std::runtime_error, "Boundary face centroid not on bounding box. Maybe the grid is not an axis-aligned shoe-box?");
}
side_areas[bf.canon_pos] += bf.area;
bf.centroid[bf.canon_pos/2] = 0.0;
bfinfo.push_back(bf);
}
assert(bfinfo.size() == bface_iters.size());
// Sort the infos so that partners end up close.
std::sort(bfinfo.begin(), bfinfo.end());
// Identify partners.
for (int i = 0; i < num_bdy; ++i) {
if (bfinfo[i].partner_face_index != -1) {
continue;
}
if (!is_periodic[bfinfo[i].canon_pos]) {
continue;
}
int lower = std::max(0, i - 10);
int upper = std::min(num_bdy, i + 10);
bool ok = match(bfinfo, i, lower, upper);
if (!ok) {
// We have not found a partner.
ok = match(bfinfo, i, 0, num_bdy);
if (!ok) {
OPM_MESSAGE("Warning: No partner found for boundary id " << bfinfo[i].bid);
// OPM_THROW(std::runtime_error, "No partner found.");
}
}
}
}