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

refinement causes composite regions, how to solve?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 11, 2004, 05:28
Default refinement causes composite regions, how to solve?
  #1
Harry
Guest
 
Posts: n/a
Hi,

I'm relatively new with ICEM / CFX and had to encouter a problem which I couldn't solve with either manuals, tutorials or messages stated in the forums:

I've generated an 2D airfoil-mesh, with appropriate refinements around the boundary layer. I continued with a transformation from 2D to 3D and edited the output file for cfx5 (v 5.7). The mesh import in CFX-Pre worked pretty well but also so called "composite regions" (i.e. SOLID External A) were generated. They appear in all those areas which are "surfaces" of former done refinement. Assuming that the faces weren't connected right I was searching for a tool such as "arbitrary connect" or something like that, but couldn't find the appropriate function;

Furthermore the solver is only able to handle this composite regions as walls which I do not appreciate because they are right in the area of interest for my application....

I do not know whether the problem is an ICEM-made or is generated in CFX. Still I'm sure that it'll only be a trick to manage this, but didn't find it yet.

Hoping that anyone is familiar with this problem, I remain with thanks in advance for your help !!!

Harry !
  Reply With Quote

Old   November 11, 2004, 15:14
Default Re: refinement causes composite regions, how to so
  #2
Robin
Guest
 
Posts: n/a
Hi Harry,

It sounds like you have left hanging nodes. You can either connect the hanging nodes in ICEM CFD or specify an interface between the faces on either side.

Regards, Robin
  Reply With Quote

Old   November 12, 2004, 01:21
Default Re: refinement causes composite regions, how to so
  #3
deLuther
Guest
 
Posts: n/a
Yes it sounds like this... For connection of hanging nodes someone can use uncouple mesh in ICEM... but not in new interface of 5.0 (if someone knows if it possible please supply me with information).
  Reply With Quote

Old   December 8, 2004, 06:08
Default imorting 2d axisymmetric problem to cfx
  #4
sridhar.k
Guest
 
Posts: n/a
sir,

How to import 2d axisymmetric meshed problem in to cfx5.7 from ansys8.1.I want the procedure to import.

thanking you,

sridhar.k
  Reply With Quote

Old   December 8, 2004, 06:13
Default Re: importing 2d axisymmetric problem to cfx
  #5
sridhar.k
Guest
 
Posts: n/a
sir,

How to import 2d axisymmetric meshed problem in to cfx5.7 from ansys8.1.I want the procedure to import.

thanking you,

sridhar.k

  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
Boundary layer in a pipe Clementhuon OpenFOAM Native Meshers: snappyHexMesh and Others 6 March 12, 2012 13:41
snappyHexMesh won't work - zeros everywhere! sc298 OpenFOAM Native Meshers: snappyHexMesh and Others 2 March 27, 2011 21:11
snappyHexMesh aborting Tobi OpenFOAM Native Meshers: snappyHexMesh and Others 0 November 10, 2010 04:23
external flow with snappyHexMesh chelvistero OpenFOAM 11 January 15, 2010 20:43
Composite regions Gui CFX 1 July 30, 2007 09:46


All times are GMT -4. The time now is 05:50.