CFD Online Logo CFD Online URL
Home > Forums > CFX

ICEM and symmetry plane

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   September 12, 2006, 22:24
Default ICEM and symmetry plane
Posts: n/a
In working with a wind tunnel/auto simulation, I have employed a symmetry plane to reduce mesh size and solve time.

When working with CFX Mesh, all cells defining the symmetry plane were automatically created in 2d (i.e. remained in the symm plane), but for whatever reason, in ICEM leveraging tetra meshing per the 'fin config' tutorial, a few cells are generated in 3d- which leads to an error in CFX (requires all cells defining a symm plane to be contained in that plane). Is there some special treatment required in ICEM for a symmetry plane to prevent the generation of 3d cells?

Any thoughts are appreciated, Regards-
  Reply With Quote

Old   September 13, 2006, 02:47
Default Re: ICEM and symmetry plane
Posts: n/a
Your problem may be caused by a wrong tolerance definition in setting the tetra parameters. You can pick-up the 3D cells and assign them to the volume part. A more general way is to mesh first the surfaces and after the volume starting from the 2D meshes. F

  Reply With Quote

Old   September 13, 2006, 06:15
Default Re: ICEM and symmetry plane
Posts: n/a
This problem is a known issue and has been covered before. Search the forum for "vector parrallel tolerance symmetry".
  Reply With Quote

Old   September 13, 2006, 08:38
Default Re: ICEM and symmetry plane
Posts: n/a
Make sure you have points and curves defining hard boundaries on that symmetry plane. If you look at only the LINE types under the Mesh display - if you see holes - that is likely where the problems with mesh are. You can move and/or merge nodes to clean the mesh. If you display the SHELLS on the symmetry plane - you can also move those nodes to the appropriate x/y/or z location defining the symmetry plane.
  Reply With Quote


Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
[ICEM] How to generate sunstructured "all-tri patch-dependant" surface mesh in ICEM? jash ANSYS Meshing & Geometry 19 July 23, 2013 18:48
symmetry boundary conditions in cfx lost.identity CFX 41 May 22, 2013 07:21
[ICEM] Blocking and Symmetry BrolY ANSYS Meshing & Geometry 32 August 24, 2012 03:13
symmetry plane error due to a split-block Nick R ANSYS Meshing & Geometry 4 August 4, 2011 17:56
Symmetry plane error in solver Santiago Orrego. CFX 6 January 31, 2007 08:09

All times are GMT -4. The time now is 13:35.