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

kinetic energy spectrum of dnsFoam

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 12, 2010, 13:14
Default kinetic energy spectrum of dnsFoam
  #1
Member
 
Matthias Walter
Join Date: Mar 2009
Location: Rostock, Germany
Posts: 61
Rep Power: 8
matthias is on a distinguished road
Hello,

I have a question about the kinetic energy spectrum of dnsFoam. The spectrum is defined as:

E(k)= (Ea*(k/k0)**4)exp(-2.0*(k/k0)**0.5)

I didn't find this formula in literature. So, where can I find it and what is the meaning of the constants Ea and k0?
Is k0 the forced mean kinetic energy?

Another question concerns the values of UOKupper and UOKlower. Are they problem-dependent? If yes, how should they look?

Best regards,

Matthias
matthias 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
Using starToFoam clo OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 33 September 26, 2012 04:04
BlockMesh FOAM warning gaottino OpenFOAM Native Meshers: blockMesh 7 July 19, 2010 14:11
Import problem ARC Open Source Meshers: Gmsh, Netgen, CGNS, ... 0 February 27, 2010 11:56
Axisymmetrical mesh Rasmus Gjesing (Gjesing) OpenFOAM Native Meshers: blockMesh 10 April 2, 2007 14:00
Import gmsh msh to Foam adorean Open Source Meshers: Gmsh, Netgen, CGNS, ... 24 April 27, 2005 08:19


All times are GMT -4. The time now is 11:59.