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

y+, Dx+,Dz+ for LES

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 24, 2002, 17:04
Default y+, Dx+,Dz+ for LES
  #1
Li Yang
Guest
 
Posts: n/a
Dear all,

Could you please tell me what are the restrictions of y+, Dx+ and Dz+ for LES ? Do those restrictions refer to the maximum values or averaged values ?

Thank you very much in advance !

Li

  Reply With Quote

Old   July 29, 2002, 09:14
Default Re: y+, Dx+,Dz+ for LES
  #2
Alexandre Chatelain
Guest
 
Posts: n/a
For LES, the recommended values for the grid spacing are (in the case where no wall wall is used) :

Medium resolution : Dy+min = 1 Dx+ ~ 70-80 Dz+ ~ 15-20

High resolution : Dx+ ~ 35 Dz+ < 10

Low resolution : Dx+ ~ 155 Dz+ ~ 35-40

Of course these "should" be averaged values...

Alexandre Chatelain

PhD Student - LES of Heat Transfer CEA Grenoble - LEGI/MoST Team FRANCE

  Reply With Quote

Old   August 10, 2002, 18:21
Default Re: y+, Dx+,Dz+ for LES
  #3
Li Yang
Guest
 
Posts: n/a
Dear Alexandre,

Thank you for your reply. Do you have any reference for those criterions ?

With best wishes

Li
  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



All times are GMT -4. The time now is 18:20.