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

left-handed face

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

Like Tree1Likes
  • 1 Post By Far

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 8, 2012, 03:15
Default left-handed face
  #1
Senior Member
 
Join Date: May 2011
Location: Germany
Posts: 130
Rep Power: 13
Zigainer is on a distinguished road
Hi,

I just checked my grid and i've got only 2 left-handed faces (32Mio right-handed). So I wanted to repair them with grid/modify-zone/repair-face-handedness .... but that does not work. "Left-handed faces can't no converted to right-handed faces. All face nodes have the right order, but the mesh probably contains non-convex cells."
I also checked my minimum volume and it is not negative.

Any ideas? How can I visualize these 2 faces to see if they might influence convergence (which I can't achieve right now)?

Last edited by Zigainer; May 11, 2012 at 04:15.
Zigainer is offline   Reply With Quote

Old   May 8, 2012, 04:42
Default
  #2
New Member
 
Helen
Join Date: Apr 2012
Posts: 17
Rep Power: 12
oborona is on a distinguished road
Hi!
As I remember you can find the location of this cells by Display/Vectors/Color by Mesh/Face Handedness. I had the same problem once and I remeshed the volume with such cells (there were geometry problems).
oborona is offline   Reply With Quote

Old   May 11, 2012, 03:57
Default
  #3
Far
Super Moderator
 
Sijal
Join Date: Mar 2009
Location: Islamabad
Posts: 4,552
Blog Entries: 6
Rep Power: 52
Far has a spectacular aura aboutFar has a spectacular aura about
Send a message via Skype™ to Far
It happens when your mesh is penetrating into your geometry and therefore Fluent does not report this as negative volume.

Initialize the flow with arbitrary values and plot the contour of mesh>>> skew ness and change the scale to 0.99 to 1.0 and you should be able to see the location of that element.
Ubuntu likes this.
Far is offline   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
[Netgen] Import netgen mesh to OpenFOAM hsieh OpenFOAM Meshing & Mesh Conversion 32 September 13, 2011 05:50
[blockMesh] BlockMeshmergePatchPairs hjasak OpenFOAM Meshing & Mesh Conversion 11 August 15, 2008 07:36
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 11:55
[blockMesh] Axisymmetrical mesh Rasmus Gjesing (Gjesing) OpenFOAM Meshing & Mesh Conversion 10 April 2, 2007 14:00
[Commercial meshers] Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Meshing & Mesh Conversion 2 July 15, 2005 04:15


All times are GMT -4. The time now is 07:45.