CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

Oddity in meshing half a torus

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 12, 2004, 09:04
Default Oddity in meshing half a torus
  #1
Maarten
Guest
 
Posts: n/a
I am running into a slight oddity while meshing half a torus using Gambit 1.3. The torus has been cut in half radially, along its primary axis. (Think of it as if you were trying to create a sandwich from a doughnut.) I want to use the Cooper tool on such a shape, and for that the torus has to be cut in half yet again, but this time along its other axis. There's only one way to choose the source faces in this case: I've labelled those 'sides' or 'side faces' in the following paragraphs.

The problem is that I noticed that the mesh is not continuous at the point where the sides meet: it has a slight clover-shape. After careful inspection, I've come to the conclusion that the mesh projection messes up slightly: instead of straight lines from one side to the other, they tend to 'sag'. Think of it as a two necklaces around someone's neck: one is pulled tight and resembles a choker, but is otherwise straight; the other one is more loose and sags in the middle. For some reason, Gambit insists on introducing slack, thus ruining the mesh. Equiangle skews are quite high for obvious reasons.

I have not come up with a solution to remedy this problem. Cutting the shape in quarters or even eights does help somewhat, but this is not a feasible solution in view of the specifications of the remainder of my geometry. Is anyone familiar with the problem? If so, can you offer a solution? I realise things are difficult to explain in words, but I'm more than happy to send you a small picture.
  Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Meshing Torus prikeyma ANSYS Meshing & Geometry 0 August 2, 2011 17:03
[ANSYS Meshing] Migrating from GAMBIT to ANSYS Meshing David-CFD ANSYS Meshing & Geometry 1 April 1, 2011 06:22
Meshing locks workbench window. andy2o CFX 0 February 1, 2008 06:01
Singularity of grid?Volume meshing vs face meshing Ken Main CFD Forum 0 September 4, 2003 12:09
Volume Meshing & Face Meshing? singularity of grid ken FLUENT 0 September 4, 2003 12:08


All times are GMT -4. The time now is 22:32.