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

Turbulence dead? well... can somebody help me with a flat plate meanwhile?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 22, 2000, 06:23
Default Turbulence dead? well... can somebody help me with a flat plate meanwhile?
  #1
Javier
Guest
 
Posts: n/a
Hi everybody, Glad to hear that turbulence is been solved... but, while I am waiting, I would very much like you to help me on a very simple problem. I have a flat plate transitional test case from which I have kinetic energy data and boundary layer profile at a given station. I want to restart from this station using the two-equation k-e model. I need to specify a profile for e. I would very much appreciate any approach you could think about as I am afraid I have tried so many I cannot write them all down. My flow is in a transitional state and hence is not in equilibrium. Thanks very much in advance. Regards, Javier
  Reply With Quote

Old   May 22, 2000, 23:39
Default Re: Turbulence dead? well... can somebody help me with a flat plate meanwhile?
  #2
John C. Chien
Guest
 
Posts: n/a
(1). You will need to make some assumptions on either the eddy viscosity distribution or the shear stress distribution to back out the epsilon (tke dissipation) distribution. (2). The assumption may be based on similar cases, or equilibrium boundary layer. (3). The problem is: you have something missing.
  Reply With Quote

Old   May 23, 2000, 04:41
Default Re: Turbulence dead? well... can somebody help me with a flat plate meanwhile?
  #3
Javier
Guest
 
Posts: n/a
Thanks for your prompt response. I have shear stress distribution which, coupled with the b/l profile should enable me to calculate e, isn't it? Well...if that's the approach... is not working and I am afraid is due to the sublayer region. Any ideas?
  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
k-omega-SST model (OF 1.6) - turbulent flat plate cboss OpenFOAM Running, Solving & CFD 23 November 13, 2011 02:28
Turbulence modeling for a flat plate tstorm FLUENT 0 May 20, 2009 15:55
Discussion: Reason of Turbulence!! Wen Long Main CFD Forum 3 May 15, 2009 09:52
Seperated Flow and Turbulence modelling flat plate Simon Mizzi Main CFD Forum 1 December 16, 2003 02:26


All times are GMT -4. The time now is 03:27.