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

Creating Extrusion layer in ProAm w/ small geomtry

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 31, 2005, 09:20
Default Creating Extrusion layer in ProAm w/ small geomtry
  #1
Alicia
Guest
 
Posts: n/a
I am getting a message in my batch files as I attempt to extrude my extrusion layers from my extrusion surface. (dbs 21 to 22)

Extrusion surface edge [1417979,1433737] is defined in the same direction in cells 1347347 and 1347375.

I have a small geometry (a channel section area). This might be causing be trouble.

Any comments, help, pointing in a general direction would be appreciated.

Alicia
  Reply With Quote

Old   September 1, 2005, 06:40
Default Re: Creating Extrusion layer in ProAm w/ small geo
  #2
Volker
Guest
 
Posts: n/a
Have a look at the two mentioned cells (and maybe the neighbouring ones as well). If you have a small section with a relatively coarse surface mesh it is possible that proam produces a subsurface in which the surface elements of two opposing walls touch each other (like in a kinked tube). You just have to refine the surface mesh in that area to get rid of that problem.

hope that helps.

Volker
  Reply With Quote

Old   September 1, 2005, 13:32
Default Re: Creating Extrusion layer in ProAm w/ small geo
  #3
Tom
Guest
 
Posts: n/a
I have been told by cd-adapco tech staff that this error is caused by a problem on the surface, such as a CP match error or something. It may be caused by the small surfaces because of the tolerances in proam. To fix this you can go back to your surface and use the vscale command to scale it up (example:vscale,all,,,1000,1000,1000 scales it up by a factor of 1000). Then go through the entire process of building your model again, remembering that if the subsurface size was 0.001, it will now be 1 if you scale up by 1000. Likewise, for the same scaling factor, when you write the geometry file you scale it back. For example, if the model was in inches, the scale factor would then be .0254E-03. These errors are my nemisis and I am not always sucessful in solveing them. Good luck!! Tom
  Reply With Quote

Reply

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
problem in extrusion of the sub surface-PROAM Bala Siemens 3 February 19, 2008 16:34
What is the extrusion layer Radhika Siemens 5 February 2, 2007 18:06
Error when creating prismatic layer in ICEM Andrew CFX 4 October 19, 2006 14:50
creating a boundary layer mesh SANAT DAS FLUENT 1 August 11, 2005 13:57
Creating Boundary layer Ken FLUENT 0 April 28, 2005 13:23


All times are GMT -4. The time now is 06:42.