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

IGES surface doesn't work

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 15, 2003, 04:47
Default IGES surface doesn't work
  #1
pete
Guest
 
Posts: n/a
Hi everyone,

I want to import a IGES complex curved surface to CFX and I have created the IGES surface in CADKEY V20.

When I import the IGES file, a warning message appears:

Build error for NURBS surface #1

and no surface is created.......

I have no problem importing this IGES file (about 50MB) to the other CAD software like Mechanical desktop...... Thus, this must not be the problem of the file itself. Is that a limitation of CFX5.5.1?

There's no option that I can choose other than IGES format at the moment. Seems like we have to pay extra for the other options. Anyone has the similar problem before?

Thanks for any advice here.
  Reply With Quote

Old   July 15, 2003, 09:16
Default Re: IGES surface doesn't work
  #2
Min
Guest
 
Posts: n/a
Please check the unite option.
  Reply With Quote

Old   July 15, 2003, 11:50
Default Re: IGES surface doesn't work
  #3
pete
Guest
 
Posts: n/a
can you please say a bit more? What unite option you are referring to?

Thanks for advice anyway.
  Reply With Quote

Old   July 15, 2003, 13:18
Default Re: IGES surface doesn't work
  #4
Min
Guest
 
Posts: n/a
Hi, Pete,

1) go to file - new, selecting the unite (mm, ft or so on) same IGES file's unite.

2) import the IGES file.

Pete, you can try this.

Min
  Reply With Quote

Old   July 15, 2003, 18:42
Default Re: IGES surface doesn't work
  #5
Glenn Horrocks
Guest
 
Posts: n/a
Hi Pete,

Importing geometry using IGES is always hit and miss. It is common to get surfaces disappearing, surfaces loosing their trimming or just simply going crazy (eg going all wobbly). This is not a problem with CFX-Build, it is just a fact of life with IGES! There is no such thing as a "correct" IGES file, so just because it imported OK into another program does not mean the IGES file is "OK". The IGES code is written and interpreted differently by all the different solid modelling packages.

Even though the CAD import options cost money they are far more reliable and accurate. If you can afford them they are the only way to go.

Glenn
  Reply With Quote

Old   July 15, 2003, 23:30
Default Re: IGES surface doesn't work
  #6
pete
Guest
 
Posts: n/a
Thanks Glenn....Seems like CAD import option is the only way to solve my problem....
  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
Conversion Error nuovodna Open Source Meshers: Gmsh, Netgen, CGNS, ... 14 October 1, 2010 11:07
Can Flow-3D plot the free surface area in Iso-surface or colour variable? therockyy FLOW-3D 1 June 20, 2010 19:36
Recover surface from surface mesh in IcemCFD Jerry Tanner CFX 0 August 20, 2008 12:48
Equilibrium of a free surface under surface tensio Ryan Main CFD Forum 1 August 7, 2001 16:14
free convection heat transfer from a heated horizontal surface through a liquid to a thin cooled fin Kaushik FLUENT 1 May 8, 2000 06:47


All times are GMT -4. The time now is 19:09.