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

connected and connected bientity in gambit

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 18, 2006, 09:53
Default connected and connected bientity in gambit
  #1
scott
Guest
 
Posts: n/a
hi ,

when i split my rectangle geometry by a face i have used two options: 1-to use biderctional(retain off,connected on) you will get two volumes connected bientity 2-do not use biderctional(retain off,connected on) , you will get two volumes connected my question : what is the difference between connected and connected bientity ? best regards
  Reply With Quote

Old   October 18, 2006, 12:11
Default Re: connected and connected bientity in gambit
  #2
Jason
Guest
 
Posts: n/a
If the face you're using to split the rectangle is completely within the rectangle, then there shouldn't be any difference (assuming retain was off and connected was on for both methods). Bidirectional splits one face with a splitting face... and whatever wasn't used of the splitting face is then left as a separate face, but since your splitting face is completely within your main face, there is nothing left over to leave as a separate face...

If the splitting geometry protrudes from the rectangle, that's when you'll see the difference. If two faces overlap (faces A and B) and you split A with B with the bidirectional option off (connected on, retain off), then the part of B that is not within A will simply disappear. If you do the same thing with the bidirectional option on then the portion of B that is not within A will become its own face.

Example (or an attempt at one using text at least...)

/ ( / )

where / / is face A and ( ) is face B

Splitting with the bidirectional option off give you:

/ ( /

Where / ( is one face and ( / is a different face

Splitting with the bidirectional option on gives you:

/ ( / )

Where / ( is one face and ( / is a different face, and / ) is a different face still...

Kind of awkward trying to show it with symbols, but if you look in the Gambit users manual, there's a better picture using actual geometry.

Hope this helps, and good luck, Jason
  Reply With Quote

Old   October 18, 2006, 16:51
Default Re: connected and connected bientity in gambit
  #3
scott
Guest
 
Posts: n/a
thankyou jason
  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 netgen mesh to OpenFOAM hsieh Open Source Meshers: Gmsh, Netgen, CGNS, ... 32 September 13, 2011 05:50
CheckMeshbs errors ivanyao OpenFOAM Running, Solving & CFD 2 March 11, 2009 03:34
CheckMeshbs errors ivanyao OpenFOAM Running, Solving & CFD 0 March 10, 2009 23:07
Courant no%23 and sharp corner in 3D jam OpenFOAM Running, Solving & CFD 6 November 18, 2008 09:21
connected or disconnected in split form of GAMBIT sean FLUENT 1 March 13, 2001 17:44


All times are GMT -4. The time now is 00:36.