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

[GAMBIT] meshing big volumes

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 11, 2013, 11:30
Default meshing big volumes
  #1
Member
 
Join Date: Mar 2013
Posts: 48
Rep Power: 4
niloogh is on a distinguished road
hi
I want to mesh a big wind turbin using gambit.but I have problems becaus of its big geometry.it takes a lot of time.what can I do??
niloogh is offline   Reply With Quote

Old   March 12, 2013, 02:45
Default
  #2
Super Moderator
 
-mAx-'s Avatar
 
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 2,992
Rep Power: 30
-mAx- will become famous soon enough
reduce size of your mesh by using size function for instance.
Pictures may help
__________________
In memory of my friend Hervé: CFD engineer & freerider
-mAx- is offline   Reply With Quote

Old   March 12, 2013, 16:34
Default
  #3
Member
 
Join Date: Mar 2013
Posts: 48
Rep Power: 4
niloogh is on a distinguished road
tnx for your help
but I dont know which mesh size in suitable for this volume.is 10mm suitable for this purpose?
niloogh is offline   Reply With Quote

Old   March 12, 2013, 17:37
Default
  #4
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,971
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
Measure size of geometry on different parts and apply size function accordingly.

For example is edge length is 10 then size of 1 would produce 10 or so elements. There apply sizing function with size 1, growth rate 1.1 to 1.2 and maximum size to 10 or as required.
Far is offline   Reply With Quote

Old   March 13, 2013, 17:19
Default
  #5
Member
 
Join Date: Mar 2013
Posts: 48
Rep Power: 4
niloogh is on a distinguished road
I did it but its meshing takes a lot of hours and finally it fails
niloogh is offline   Reply With Quote

Old   March 16, 2013, 08:07
Default
  #6
Member
 
Join Date: Mar 2013
Posts: 48
Rep Power: 4
niloogh is on a distinguished road
I have got one error during meshing
error: out of memory while meshing.
what can I do to solve this problem??
niloogh is offline   Reply With Quote

Old   March 16, 2013, 08:11
Default
  #7
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,971
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
Use larger sizes in size function and try
Far is offline   Reply With Quote

Old   March 20, 2013, 10:00
Default
  #8
Senior Member
 
ghost82's Avatar
 
Daniele
Join Date: Oct 2010
Location: Italy
Posts: 918
Rep Power: 15
ghost82 will become famous soon enough
And split your volume into different volumes so to not have out of memory error message; obviously mesh one volume a time.

Daniele
ghost82 is offline   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
[GAMBIT] 3D boundary layer and meshing problem in GAMBIT 2.4.6 prashanthreddyh ANSYS Meshing & Geometry 1 December 20, 2011 01:35
meshing 3 connected volumes with gambit Miguel FLUENT 1 July 20, 2006 05:50
Help with splitting volumes and meshing Vidya Raja FLUENT 5 May 27, 2006 14:17
How to exclude volumes from meshing in ICEM Evgeniy CFX 2 November 4, 2005 13:09
Meshing of split volumes Dhananjay FLUENT 3 May 28, 2002 06:09


All times are GMT -4. The time now is 13:57.