songtianlun/openfoam
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ENH: isoCutCell - improved robustness. Patch provided by Johan Roenby - see #582

Browse Source
This commit is contained in:
Andrew Heather 2017-09-08 17:22:49 +01:00 committed by Mark Olesen
parent c9b6b090ca
commit 21301e3aba
1 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/finiteVolume/fvMatrices/solvers/isoAdvection/isoCutCell/isoCutCell.C
View File

@ -361,6 +361,23 @@ Foam::label Foam::isoCutCell::calcSubCell
// Cell cut at least at one face
cellStatus_ = 0;
calcIsoFaceCentreAndArea();
// In the rare but occuring cases where a cell is only touched at a
// point or a line the isoFaceArea_ will have zero length and here the
// cell should be treated as either completely empty or full.
if (mag(isoFaceArea_) < 10*SMALL)
{
if (fullySubFaces_.empty())
{
// Cell fully above isosurface
cellStatus_ = 1;
}
else
{
// Cell fully below isosurface
cellStatus_ = -1;
}
}
}
else if (fullySubFaces_.empty())
{