|October 12, 2011, 05:05||
Problem with segment surface and meshing
Join Date: Oct 2010
Posts: 29Rep Power: 6
I work with ICEM. I need to make several cylindrical holes in a spherical surface, so I have intersected the sphere with the cylinders obtaining the intersecting curves. After that I segment the sphere through the curves. At that point some of the segmentations get wrong: or didn't work at all or segment the surfaces but not exactly along the curve, with some little errors.
How can I solve this problem? is there some setting that influence the segmentation?
The problem rises when I have to mesh the model: in the holes that didn't segment exactly along the curve (even if the geometric difference should be neglected) the boundary curve itself was segmented in many sub-curves (some of them very tiny).
When the code try to get the tetra mesh, many highly deformed triangles are formed near such curves (with the edge on the sub-curve very small while the others much bigger, taking the imposed mesh size from the surrounding surface).
How can I fix this problem? even if I cannot fix the segment issue, is there a way to impose the meshing so that I can make the code to forget about those tiny sub-curves?
Thanks for the help
|October 13, 2011, 16:42||
Join Date: Mar 2009
Location: Ann Arbor, MI
Blog Entries: 1Rep Power: 36
A number of the geometry commands (such as create intersection curve or segment by curve) are very sensitive to the tri-tolerance of the model. I suggest refining the tri-tolerance and then trying again...
Search the Help for more info...
|Thread||Thread Starter||Forum||Replies||Last Post|
|Error : Self intersecting surface mesh, computing intersections & Error : Impossible||velan||Open Source Meshers: Gmsh, Netgen, CGNS, ...||1||July 14, 2015 05:54|
|[GAMBIT] 3D boundary layer and meshing problem in GAMBIT 2.4.6||prashanthreddyh||ANSYS Meshing & Geometry||1||December 20, 2011 01:35|
|Meshing problem||Andrea_85||OpenFOAM||1||January 13, 2011 10:36|
|POROUS SURFACE MESHING PROBLEM||subramani.j||CD-adapco||1||March 3, 2004 05:45|
|GAMBIT meshing problem||Gauthier Lambert||Main CFD Forum||1||August 3, 2000 09:22|