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

Profiles of u, k and eps in a pipe flow

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 6, 2006, 12:55
Default Profiles of u, k and eps in a pipe flow
  #1
Gorka
Guest
 
Posts: n/a
Hi all,

I am looking for the (experimental) profiles of velocity, turbulent kinetic energy (k) and it's dissipation rate (epsilon) in a fully developed pipe flow. I mean: U(r,Re), k(r,Re) and epsilon(r,Re). r is the radial coordinate and Re is the Reynolds number.

I want them to define the inlet of my simulation domain.

Can anybody provide any reference in this regard?

Thanks a lot
  Reply With Quote

Old   April 7, 2006, 09:00
Default Re: Profiles of u, k and eps in a pipe flow
  #2
J
Guest
 
Posts: n/a
I don't know, but have a look on www.efluids.com , that might help.
  Reply With Quote

Old   April 8, 2006, 22:40
Default Re: Profiles of u, k and eps in a pipe flow
  #3
dp
Guest
 
Posts: n/a
I usually run a separate calculation on a domain 100D with uniform inflow and constant k and epsilon set so that the turbulence Reynolds number = 10 * real Re. 100D is usually enough to attain dvelopped profiles for U, k nad epsilon. note that epsilon cannot be measured. runnningg 100d will give you consistent fields at the out flow. Use those as your boundray conditions
  Reply With Quote

Reply


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Complex problem: Open Channel Flow lett FLUENT 18 November 10, 2018 18:30
Problems with Cyclic & init. BCs for turbulent (k-eps) pipe flow florian_krause OpenFOAM 3 December 1, 2012 04:11
lenght and number of nodes for an orifice meter flow problem - k-eps model fofo FLUENT 0 November 15, 2009 03:49
Stabilizing turbulence equation in channel flow Biga Main CFD Forum 5 March 22, 2005 20:06
Profiles John FLUENT 5 May 29, 2002 12:04


All times are GMT -4. The time now is 10:16.