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

Grid Generation

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 7, 2000, 14:04
Default Grid Generation
  #1
AndyR
Guest
 
Posts: n/a
Hi,

Does anyone know how to set boundary conditions on grids generated by Pro-Mesh (From the Pro-Engineer application). I can use gambit but since we use Pro-E to generate our 3D solid models I was hoping that Pro-Mesh would allow this. I export the mesh as ANSYS then import into Fluent but I cannot find a way to define the faces for the boundary conditions. Is there a way to define faces and apply the boundary conditions directly in Fluent,(version 5.1)? This would be a nice solution since the interface for importing Pro-E models directly into Gambit does not work under NT, only Unix. I can import IGES but then I am stuck with a lot of healing and re-modelling to restore the models integrity before I can mesh it. All this is very time consuming and since I am involved in commercial project work, I do not have the luxury of taking my time to generate models. If all else fails, are there any other mesh generators that will allow me to set boundary conditions that Fluent will recognise? I dislike using Gambit since I have been spoilt by proper 3D CAD modelling applications. Any assistance will be greatly appreciated,

tnx

AndyR
  Reply With Quote

Old   September 11, 2000, 15:01
Default Re: Grid Generation
  #2
Shyam Kishor
Guest
 
Posts: n/a
You can export solid models from Pro/E using STEP. It could be imported in Gambit as real volumes. You should be able to mesh them directly, if the original model is clean.

Other option would be to import the "ANSYS" mesh in Gambit, and then use "Mesh Modify" feature of Gambit to retrieve topological faces from the mesh, for applying the desired boundary conditions.
  Reply With Quote

Old   September 12, 2000, 15:22
Default Re: Grid Generation
  #3
AndyR
Guest
 
Posts: n/a
Thanks Shyam, that is a bit cleaner than dealing with IGES - could you advise what other pre-processors are available that we could use with Fluent - I understan ICEM has something available.

Thanks again.

AndyR
  Reply With Quote

Old   September 13, 2000, 10:52
Default Re: Grid Generation
  #4
Shyam Kishor
Guest
 
Posts: n/a
Yes, ICEM can be used with Fluent. I am not sure, whether or not it will allow you to set Fluent boundary conditions on the grids generated by Pro-Mesh, though.
  Reply With Quote

Old   September 13, 2000, 16:30
Default Re: Grid Generation
  #5
David
Guest
 
Posts: n/a
Hi,

If you are having meshing problems with data from PROE then ICEM CFD will be the best tool for the job.

1. It has a direct CAD link to PROE, so no messing about with IGES as with other systems

2. ICEM unstructured meshing is very fast, one of the only systems on the market that doesn't need a surface mesh to start. Both surface and volume are automatic

3. ICEM structured meshing is also very fast, uses a unique approach to block modeling. A good tool if you require high grid quality for boundary layer meshing.

For more information see

http://www.icemcfd.co.uk

Fill in the form on the contact page and we can set you up with a trail license.

Regards

David ICEM CFD UK
  Reply With Quote

Old   September 19, 2000, 09:21
Default Re: Grid Generation
  #6
John Chawner
Guest
 
Posts: n/a
You might want to consider Gridgen which is compatible with both Fluent v4 and v5. Check out http://www.pointwise.com or email me for more info.
  Reply With Quote

Reply

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
need help for generation grid aya FLUENT 11 March 4, 2008 15:46
3D Hyperbolic Grid Generation - Help Requested... Marcus Lobbia Main CFD Forum 2 November 9, 2003 06:53
Help Re. Grid Generation Patel Amit R. FLUENT 1 February 28, 2003 22:27
Combustion Convergence problems Art Stretton Phoenics 5 April 2, 2002 05:59
Latest news in mesh generation Robert Schneiders Main CFD Forum 0 March 2, 1999 05:07


All times are GMT -4. The time now is 02:08.