CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum


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

LinkBack Thread Tools Display Modes
Old   January 31, 2001, 01:13
Default DNS
Posts: n/a
I need to implement some simulations in small scale (in the scale of some milimeters) so I can derive closure equations for my full scale simulations. My subject is porous media. As is the first time I'll do it, I would like to ask you, cfd gurus, about rules ( if there are) on DNS. Particularly I'm concerned with the boundary conditions. Some bibliographical or other kind of sources would be more than welcome.

Thanks in advance

A real newbie

Arturo Ortiz
  Reply With Quote

Old   February 1, 2001, 14:07
Default Re: DNS
frederic felten
Posts: n/a
Hi there,

A general rule about grid spacing at the wall: for LES: y+ = 1. for DNS: y+ = 0.1

Hope this helps, Sincerely,

Frederic Felten. CFD Lab, UT Arlington.
  Reply With Quote


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
DNS in Turbulent S.O.S. Urgent Hengky FLUENT 11 September 28, 2006 10:07
about DNS john lei Main CFD Forum 1 January 22, 2004 14:42
what is DNS ? Phillip Main CFD Forum 10 August 28, 2003 15:28
Complicated Homogeneous Shear DNS ff_fan Main CFD Forum 0 December 9, 2002 19:23
DNS of homogeneous shear flow: comments please! ff_fan Main CFD Forum 1 September 12, 2002 02:28

All times are GMT -4. The time now is 04:19.