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

Extra edge created in Bends

Register Blogs Community New Posts Updated Threads Search

Like Tree3Likes
  • 1 Post By -mAx-
  • 1 Post By -mAx-
  • 1 Post By husker

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 7, 2011, 22:26
Default Extra edge created in Bends
  #1
Senior Member
 
Mohsin Mukhtar
Join Date: Mar 2010
Location: South Korea
Posts: 249
Rep Power: 17
Mohsin is on a distinguished road
hello

In Gambit, I used "Revolve faces" command to make a 90 degree bend of the pipe, After a 90 degree bend is made, it creates an extra edge joining the two vertices of the bend.

Does this extra edge has any implications? or its existance doesnt matter? Please guide.
Mohsin is offline   Reply With Quote

Old   August 8, 2011, 07:08
Default
  #2
Super Moderator
 
-mAx-'s Avatar
 
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41
-mAx- will become famous soon enough
post a picture
__________________
In memory of my friend Hervé: CFD engineer & freerider
-mAx- is offline   Reply With Quote

Old   August 8, 2011, 07:37
Default
  #3
Senior Member
 
Mohsin Mukhtar
Join Date: Mar 2010
Location: South Korea
Posts: 249
Rep Power: 17
Mohsin is on a distinguished road
Max, thank you for your reply.
The picture is attached. Extra edge is a blue line originating from ther vertex.
This is created when I used the "revolve face" command with an angle of 90 degree.
How can i omit this? or its existance has no influence on the mesh etc and/or why is it generated?

Thanks for your help.
Attached Images
File Type: jpg 90Deg_bend.jpg (45.6 KB, 8 views)
Mohsin is offline   Reply With Quote

Old   August 8, 2011, 07:45
Default
  #4
Super Moderator
 
-mAx-'s Avatar
 
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41
-mAx- will become famous soon enough
ok, now it is clear
That will have no influence.
Mohsin likes this.
__________________
In memory of my friend Hervé: CFD engineer & freerider
-mAx- is offline   Reply With Quote

Old   August 8, 2011, 08:04
Default
  #5
Senior Member
 
Mohsin Mukhtar
Join Date: Mar 2010
Location: South Korea
Posts: 249
Rep Power: 17
Mohsin is on a distinguished road
Could you please tell me why is it created? and how to omit it?
Mohsin is offline   Reply With Quote

Old   August 8, 2011, 08:11
Default
  #6
Super Moderator
 
-mAx-'s Avatar
 
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41
-mAx- will become famous soon enough
The line is created from the vertex.
If you sweep or rotate a surface, Gambit will stretch your topology: A surface will be a volume, an edge will be a surface and a vertex will be an edge.
If you want to make the line disapear, you need to omit the vertex.
But that : you won't be able to do it, since your circle needs a vertex at least.
Why it is bothering you?
Mohsin likes this.
__________________
In memory of my friend Hervé: CFD engineer & freerider

Last edited by -mAx-; August 8, 2011 at 09:26.
-mAx- is offline   Reply With Quote

Old   August 8, 2011, 09:37
Default
  #7
Member
 
Join Date: Mar 2009
Posts: 85
Rep Power: 17
husker is on a distinguished road
Could you please say that if there seems any silhouette in the picture?

If you revolve a circular section, you only have two circle edges (source and target) and one edge on the outer surface. That edge is created from the vertex on your source circle.
Mohsin likes this.
husker is offline   Reply With Quote

Old   August 8, 2011, 19:58
Default
  #8
Senior Member
 
Mohsin Mukhtar
Join Date: Mar 2010
Location: South Korea
Posts: 249
Rep Power: 17
Mohsin is on a distinguished road
Thank you Max and Husker.
Mohsin is offline   Reply With Quote

Reply


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
OpenFOAM 1.7.1 installation problem on OpenSUSE 11.3 flakid OpenFOAM Installation 16 December 28, 2010 08:48
Actuator disk model audrich FLUENT 0 September 21, 2009 07:06
Regarding FoamX running Kindly help out hariya03 OpenFOAM Pre-Processing 0 April 18, 2008 04:26
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 11:55
CFX4.3 -build analysis form Chie Min CFX 5 July 12, 2001 23:19


All times are GMT -4. The time now is 23:01.