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

[GAMBIT] 3D meshing

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 8, 2009, 08:04
Default 3D meshing
  #1
New Member
 
Dag Stromsvag
Join Date: Apr 2009
Posts: 6
Rep Power: 16
Daggemann is on a distinguished road
Hi

I am working on a personal project regarding a subsea particle separation unit. My Gambit skills are very moderate and I have encountered a problem that I hope you guys might help me with.


http://www.stromsvag.net/Fluent_Gamb...fin_colors.jpg


The geometry shown above is constructed from a 2D frame rotated 60 degrees, creating 1/6 of a conic cylinder. The grey areas are walls, inlet is on the bottom left, and the outlet is the small red area on the top. The green part is a guidevane/fin inducing circular motion. This is the part that is causing me some difficulties.

The 60 degree rotation creates the different volumes, and the guidevane have to be added after the rotation. First of all Gambit will not allow me to split the volume which the guidevane is a part of, since the volume is connected to all the other volumes. How can I solve this?

Meshing the model is no problem with out the guidevane. Is it possible to split a mesh with this vane? Or is it easier to just mesh the two different volumes created after splitting the original volume?

TY
Daggemann is offline   Reply With Quote

Old   April 8, 2009, 08:22
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
are you working with real or virtual geometry?
-for real geometry: try to enlarge the green surface in the 3 directions (sometimes gambit failed to split if the outer egdes match the volume to be splited)
-for virtual geometry: split the volume's edge with the green surface's vertices. Then split the volumes' surface with the green surface's edge (check if the surface are well splitted). Create the surface from the edge and finally split the volume with this edge
-mAx- is offline   Reply With Quote

Old   April 8, 2009, 12:58
Default
  #3
New Member
 
Dag Stromsvag
Join Date: Apr 2009
Posts: 6
Rep Power: 16
Daggemann is on a distinguished road
I am working with only real geometry, to be onest I do not really no the difference between the two.

I did as you suggested, and it worked perfectly. I am now moving on to meshing the two new volumes...
Daggemann is offline   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
Urgent help, help pl for meshing problem Shashi FLUENT 8 October 8, 2008 12:24
Best Meshing scheme for Cylinder Nutrex Main CFD Forum 4 July 29, 2008 12:03
Meshing locks workbench window. andy2o CFX 0 February 1, 2008 06:01
Singularity of grid?Volume meshing vs face meshing Ken Main CFD Forum 0 September 4, 2003 12:09
Volume Meshing & Face Meshing? singularity of grid ken FLUENT 0 September 4, 2003 12:08


All times are GMT -4. The time now is 11:11.