CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

Meshing issues with StarCCM+

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 11, 2011, 11:36
Unhappy Meshing issues with StarCCM+
  #1
New Member
 
Join Date: Jul 2009
Posts: 2
Rep Power: 0
Ganephtes is on a distinguished road


Hello,

I am encountering issues with meshing on adjacent boundaries of a same region.
Surface meshing generates non-matching topologies at edges, ie vertices of one face don't match those on the adjacent face.
Yet, at the import of the CAD, surfaces were perfectly jointed, edge-to-edge.

And so, because of that, volumetric meshing is impossible !
Can someone tell me what can lead to this problem.

Thank you.
Ganephtes is offline   Reply With Quote

Old   May 11, 2011, 13:00
Default
  #2
Senior Member
 
Ryne Whitehill
Join Date: Aug 2009
Posts: 312
Rep Power: 19
rwryne is on a distinguished road
Quote:
Originally Posted by Ganephtes View Post


Hello,

I am encountering issues with meshing on adjacent boundaries of a same region.
Surface meshing generates non-matching topologies at edges, ie vertices of one face don't match those on the adjacent face.
Yet, at the import of the CAD, surfaces were perfectly jointed, edge-to-edge.

And so, because of that, volumetric meshing is impossible !
Can someone tell me what can lead to this problem.

Thank you.
Open a region scene that shows your geometry. Then:
Under Representations, right click Initial Mesh and click Repair. Disable the bottom two options (Face quality, face proxmity) and hit OK.

Check to see if you have any errosr, especially Free edges (will show up as green). If so, you may need to fix these either manually or by working on your import settings (tessellation, etc)
rwryne is offline   Reply With Quote

Old   May 12, 2011, 04:51
Default
  #3
New Member
 
Join Date: Jul 2009
Posts: 2
Rep Power: 0
Ganephtes is on a distinguished road
Thank you for your answer !
This kind of manipulation has already been tried without any success.
Solution has just been found this morning. Actually, the computation needed interfaces that had been defined before the mesh was applied.
We deleted these interfaces, meshed the domain and then (and only) interfaces were defined.
A computation has even been carried out ! It works fine.
But even thank you for your help
Ganephtes is offline   Reply With Quote

Reply

Tags
mesh deformation, mesh displacement


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[ICEM] Meshing Issues in ICEM amod_kumar ANSYS Meshing & Geometry 4 June 23, 2010 08:57
Meshing for StarCCM sjohnson Main CFD Forum 2 June 3, 2010 09:10
Issues with dynamic meshing sridhu88 FLUENT 1 June 11, 2009 17:46
[GAMBIT] Surface Meshing Issues in Gambit Forrest ANSYS Meshing & Geometry 4 March 27, 2009 15:22
Meshing Errors in Starccm Josh Kempenaar Siemens 2 November 30, 2006 09:14


All times are GMT -4. The time now is 13:59.