|May 7, 2014, 08:46||
Problem keeping unstructured domain on database
Join Date: May 2014
Posts: 1Rep Power: 0
I am attempting to create an unstructured surface domain for an iced airfoil. I imported a *.stp file that has ~500,000 triangular elements. When I build the domain on the database, most (~80%?) of the resulting triangles are directly on the domain, as you would expect. The remaining triangles go "through" the database, and link to other vertices on the domain.
I've attached a picture. The triangles in question tend to form along the boundaries of the domain.
Here are some steps I've taken, and what I've observed:
1) Enforcing a max angle (5-10) doesn't help, but does increase the number of triangles.
2) Enforcing a max deviation (0.001-0.04) doesn't help, but does increase the number of triangles.
3) Pointwise appears to ignore the max/min edge length. When I put them as ~1.0 the maximum edge length in the domain ends up to be ~33 (!!) and the minimum edge length is ~1e-3.
4) Delaunay triangulation is much more robust in keeping triangles on the database than advancing fronts.
Any advice/tips would be greatly appreciated.
|May 8, 2014, 08:30||
Join Date: Mar 2009
Location: Ottawa, ON, CAN
Posts: 391Rep Power: 13
|database, domain, pointwise, unstructured, wtf|
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