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

Meshers

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 3, 2007, 18:20
Default Meshers
  #1
Wooster
Guest
 
Posts: n/a
I've asked this on the CFX forums at ANSYS, but I'll ask here.

I usually use ICEM to do my meshing. Recently, we picked up version 11 with workbench and I started playing around with the CFX-Mesh that workbench uses. It does a usual mesh (tetras and prisms). Not counting the mesh editing that ICEM contains, how does CFX-Mesh compare with ICEM? I'd like to use it since it looks "slicker" than ICEM and there's no fussy import this and that to go through. Any opinions?

-W
  Reply With Quote

Old   July 4, 2007, 04:25
Default Re: Meshers
  #2
Pankaj
Guest
 
Posts: n/a
Hi!

I started with cfx-10 & tried both cfx mesh and icem. Previously my opinion was that meshing with ICEM is quiet tedious,but after practising some time I find to many options to do in icem.

U can have body points,orfn,can know cordinates of mesh,mesh quality,then bad quality elements and can perticularly handle them.These facilities i couldnt find in cfx-mesh.

They might be there.But i m preferring icem over it.

  Reply With Quote

Old   July 4, 2007, 16:13
Default Re: Meshers
  #3
Gert-Jan
Guest
 
Posts: n/a
When your geometry is simple, a closed solid, without small surfaces etc, CFX-mesh is superb. It is easy to learn and the mesh quality is better in general.

When your geometry is complex, has a lot of holes and a lot of small surfaces, fillets etc, etc, use ICEM, although ICEM is harder to learn. It has too much options.

You can 'repair' the small objects in CFX-mesh using virtual geometry. But this can be a quite tedious job. ICEM doesn't see these objects. It is more automatic.

Gert-Jan

www.bunova.nl
  Reply With Quote

Old   July 4, 2007, 18:25
Default Re: Meshers
  #4
Glenn Horrocks
Guest
 
Posts: n/a
Hi,

In short - CFX-Mesh is an easy to use mesher which works for simple to moderately complex meshes. ICEM is a much more complex mesher which requires greater training and experience to use effectively, but it ideal for generating moderate to complex meshes.

The gap between the two is narrowing and many of the geometries I used to use ICEM to mesh as it was the only option can now be meshed in CFX-Mesh. There are still a few geometries I use which CFX-Mesh cannot handle so I use ICEM for these.

Glenn Horrocks
  Reply With Quote

Old   July 4, 2007, 19:42
Default Re: Meshers
  #5
Wooster
Guest
 
Posts: n/a
Thanks guys.

I can use ICEM pretty well, but I frequently get caught up in the editing features, trying to smooth/refine/fix/create a mesh CFX will go through with little problem. I have small geometries (1/16") that are quirky at best. CFX-Mesh seems to be able to handle them (tetra/prisms) so I wanted to see what other people prefer in meshers.

thanks! W
  Reply With Quote

Old   July 13, 2007, 08:11
Default Re: Meshers
  #6
milly
Guest
 
Posts: n/a
Just to throw another in there I still use GAMBIT! and lov eit
  Reply With Quote

Old   July 15, 2007, 18:39
Default Re: Meshers
  #7
Glenn Horrocks
Guest
 
Posts: n/a
Hi,

I must admit that when I just want to do a simple hex mesh I still do that in Patran. CFX-Mesh and ICEM are not very good at quickly generating a quality structured mesh. If I had hexa that would probably be OK but I have Patran instead so I use that.

Glenn
  Reply With Quote

Old   July 16, 2007, 11:10
Default Re: Meshers
  #8
Wooster
Guest
 
Posts: n/a
I wish I had the array of meshers that you guys seem to have. Oh well, budget and all that sort of thing. Anyway, I like ICEM a little better than CFX-Mesh since there seems to be more robustness to it. I like to check/smooth my meshes and I haven't quite figured out how to do that stuff in CFX-Mesh (if it is even possible). The only use right now for CFX-Mesh is the ability to do design studies which are very useful and save me a bit of time. The boss man looks at my work "This must have taken you days!" "OH er...quite, yes. Slaved away at it all week, don't you know."

-W
  Reply With Quote

Reply


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
New OpenFOAM Forum Structure jola OpenFOAM 2 October 19, 2011 06:55
OpenFoam Mesh to Fleunt Arti OpenFOAM 7 May 7, 2009 00:15
Question about meshers HSeldon Main CFD Forum 3 October 6, 2006 05:09
STAR CCM+ v2 Antoine Siemens 4 April 3, 2006 22:21


All times are GMT -4. The time now is 04:01.