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

wall function and grid

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 16, 2005, 08:39
Default wall function and grid
  #1
Y
Guest
 
Posts: n/a
hi I am simulating flow behind a bluff body. Not I know that if I want to use the wall function. the y+ plus values should not be less than 11 and greater than 60. How can I make delta x of the first node to the value which I require and use the structure grid i.e delta x in other cels are equal and less than delta x in the first cell.

Y
  Reply With Quote

Old   March 17, 2005, 05:53
Default Re: wall function and grid
  #2
Y
Guest
 
Posts: n/a
Its is urgent Please reply me
  Reply With Quote

Old   March 17, 2005, 06:19
Default Re: wall function and grid
  #3
Stephen
Guest
 
Posts: n/a
just use "adapt -> Y+/Y*" in Fluent and let it adapt your mesh. However in 3D grids I have only been able to refine the grid (no coarsening)..

Stephen
  Reply With Quote

Old   March 17, 2005, 07:48
Default Re: wall function and grid
  #4
Y
Guest
 
Posts: n/a
Hi, Is it possible to do it in gambit or not. I do not want to affects others grid distribution. Y
  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
BSL Automatic Wall Function - Shifted koordinates Sali CFX 0 April 26, 2007 06:04
wall function and grid independency????? scott FLUENT 3 October 26, 2006 13:31
wall function and grid dependency Bob Main CFD Forum 10 April 28, 2004 03:15
Grid Independent Solution Chuck Leakeas Main CFD Forum 2 May 26, 2000 12:18
Wall function in adverse pressure gradients stephane baralon Main CFD Forum 11 September 2, 1999 05:05


All times are GMT -4. The time now is 02:23.