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

ICEM 4.2 -> CFX-5.5.1

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 30, 2003, 05:01
Default ICEM 4.2 -> CFX-5.5.1
  #1
Luca
Guest
 
Posts: n/a
Hello.I've a turbine combustion chamber with several internal walls (thin surfaces,0 thickness) correctly meshed (unstructured tetraedral mesh) with ICEM. ICEM can see the internal walls and mesh them as surfaces, but when I import the mesh in CFX-5, all internal structures disappear from the list of the potential boundary condition surfaces. Reading the user manual of CFX-5 the problem seems to be that every internal walls MUST divide 2 different sub-domains in order to be treated as a boundary condition. Anyway, for geometry generation problems, it's very hard for me define in ICEM many different materials, and so many sub-domains in CFX-5. Someone have any ideas to bypass the problem? Thank you. Luca
  Reply With Quote

Old   July 30, 2003, 07:15
Default Re: ICEM 4.2 -> CFX-5.5.1
  #2
cfd guy
Guest
 
Posts: n/a
There's no way to do this without creating extra material blocks on HEXA. And on CFX-5 you'll have to create several sub-domains. On the boundary conditions setup you must specify each combination of surfaces which will be thin walls... I think there's no way to avoid that.

cfd guy.
  Reply With Quote

Old   July 30, 2003, 09:41
Default Re: ICEM 4.2 -> CFX-5.5.1
  #3
Luca
Guest
 
Posts: n/a
Thank you for your reply. Anyway,if someone other is interested, a guy gave me a trick to avoid my problems (for TETRA meshing): in ICEM, in the menu Geometry->Mesh parameters->All families ,you've to click for every family of interior walls BOTH the button of 'internal wall' and 'split wall'.In that way ICEM generates 2 different triangular meshes on the 2 sides of the thin surfaces, and CFX-5 views them even if they're on the interior of a 3D fluid material zone! (NB:in CFX-5 'create mesh' menu, you've NOT to click on duplicate check:use defaults setting). Thank you again,and have a nice day! Luca
  Reply With Quote

Old   July 30, 2003, 15:14
Default Re: ICEM 4.2 -> CFX-5.5.1
  #4
Robin
Guest
 
Posts: n/a
Hi Luca,

Firstly, CFX-5.6 does not have this problem.

If you must continue using 5.5.1, define the surface in ICEM as a thin-cut. This will cause it to create separate nodes at for each side of the surface. If you DO NOT CHECK duplicate node checking when you import your mesh, CFX-5 will display these as separate surfaces.

Regards, Robin
  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
Import Mesh from ICEM CFD to CFX Andre Almeida CFX 10 April 20, 2014 16:33
ICEM for CFX Al Mazdeh CFX 7 April 5, 2008 07:32
Error Converting ICEM Structured Mesh to CFX Chebeba CFX 11 October 5, 2006 09:05
No.of Elements in ICEM and CFX Pre Manu CFX 1 August 25, 2006 08:20
CFX mesh import from ICEM (Windows) Andrew CFX 7 July 6, 2006 12:39


All times are GMT -4. The time now is 04:26.