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

Aspect ratio vs boundary layer

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 20, 2007, 06:12
Default Aspect ratio vs boundary layer
  #1
Jack
Guest
 
Posts: n/a
Hi! Everyone Someone told me in order to obtain good converged results I need to keep the grid aspect ratio low too. But how about at the boundary layer? A.R usually high at the boundary layer.
  Reply With Quote

Old   January 21, 2007, 20:08
Default Re: Aspect ratio vs boundary layer
  #2
Ragh
Guest
 
Posts: n/a
the key is how low is low...10 or 100 or 1000
  Reply With Quote

Old   January 21, 2007, 22:53
Default Re: Aspect ratio vs boundary layer
  #3
Jack
Guest
 
Posts: n/a
I usually consider something at about AR = 10~20 as acceptable. And depends on the local flow velocity so for something of high subsonic it would be better to keep it below 10.
  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
Automobile aero ground boundary layer OR simpleFoam/GAMG and high aspect ratio cells kyle OpenFOAM Running, Solving & CFD 4 January 4, 2011 12:17
[GAMBIT] Viscous layer elements aspect ratio siw ANSYS Meshing & Geometry 0 September 29, 2009 05:10
CREATION OF BOUNDARY LAYER Jibran Haider FLUENT 3 August 1, 2008 00:33
GAMBIT problem with 3D Boundary Layer when meshing Anthony Haroutunian FLUENT 2 March 26, 2008 03:02
New topic on same subject - Flow around race car Tudor Miron CFX 15 April 2, 2004 06:18


All times are GMT -4. The time now is 04:51.