CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

Exporting ICEM Tetra Grid to Fluent with Hexa-Core

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

LinkBack Thread Tools Search this Thread Display Modes
Old   August 28, 2007, 04:48
Default Exporting ICEM Tetra Grid to Fluent with Hexa-Core
Posts: n/a
I've just recently started using ICEM Tetra/Prism and seem to be having problems getting my mesh files exported into Fluent. I import the geometry into ICEM in IGES format, tidy it up and name all the parts, mesh using the Octree method and then apply a hexa-core to the volume mesh using the Delaunay approach. Smooth the mesh, check it for all errors and possible problems and then export in Fluent_V6 format .msh file. The only possible problems that I'm not sure about are with Delaunay violations.

The problem is that then when I try to read the grid into Fluent I get a read error. I've tried ACSII and binary formats and neither work. I've also found that importing the grid with a pure Tetra mesh (i.e. no hex's) does work. So I'm thinking that the problem is how Fluent interprets the Hexa-Core mesh topology.

The exact error messeage upon reading into Fluent is as follows:

> Reading "C:\Documents and Settings\tim\Desktop\Sample-Assembly6.msh"

253326 nodes.

675151 mixed cells, zone 73.

Error: read: face 1471627, zone 74.

Reading Faces: failed while reading section 13.

Clearing partially read grid.

Error: Read aborted dut to critical error.

Error Object: ()

Error: Error reading "C:\Documents and Settings\tim\Desktop\Sample-Assembly6.msh".

Error Object: #f

If anyone has any ideas as to what I can do to correct this problem then any assitance would be very much appreciated.

Thanks, Tim

  Reply With Quote

Old   August 28, 2007, 17:44
Default Re: Exporting ICEM Tetra Grid to Fluent with Hexa-
Posts: n/a
I use icemcfd as my mesher. I dont recall running into this problem. Have you tried a trivial test case: Simple block, tet meshed, then hexa-cored ... try that. Fluent does support full hybrid meshes.
  Reply With Quote

Old   August 30, 2007, 07:16
Default Re: Exporting ICEM Tetra Grid to Fluent with Hexa-
Posts: n/a
For anyone else that has this problem, I have obtained the solution from Ansys Support. Apparently ICEM 11.0 has a bug within it's Fluent translator for Windows operating systems that only affects hexa-core meshes. If you downloaded ICEM from the Ansys customer portal recently then the correct translator should be a part of the bundle, but because I installed ICEM from installation disks, this contained the original defective translator. So if you have a problem similar to what I had, then your best bet is to contact Ansys support who should be able to provide you with the correct translator.

For all that contributed to this post, thanks anyway for the input Joe.
  Reply With Quote


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
Hexa + Tetra meshing (Hybrid) in ICEM vmlxb6 ANSYS Meshing & Geometry 12 December 27, 2010 10:18
Exporting ICEM Tetra Grid to Fluent with Hexa-Core Tim Main CFD Forum 4 August 28, 2007 04:05
price of fluent, cfx, grid gen and icem confused cfd guru (to be) Main CFD Forum 0 October 4, 2005 16:47
Exporting Meshes from ICEM to Fluent zi FLUENT 4 August 9, 2005 10:58
Have you used ICEM CFD TETRA and HEXA ? David Main CFD Forum 1 August 22, 2000 08:56

All times are GMT -4. The time now is 03:11.