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

BC for fully developed turbulent flow in a pipe

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 21, 2009, 13:47
Post BC for fully developed turbulent flow in a pipe
  #1
New Member
 
Mubarak
Join Date: May 2009
Posts: 2
Rep Power: 0
mmd014 is on a distinguished road
Dear All,

Please can anyone help me with the equation of the velocity profile for a fully developed turbulent flow in a pipe.

I am working on 3D flow in a pipe and i want to apply fully developed turbulent BC at the inlet. I need the equation for the velocity profile.

Thanks
mmd014 is offline   Reply With Quote

Old   May 22, 2009, 06:45
Default
  #2
New Member
 
Dmitry
Join Date: Mar 2009
Posts: 7
Rep Power: 8
Dmitry is on a distinguished road
Hi!
I suggest another way to solve your problem.
At first stage you can set uniform flow at inlet with turb. parameters such: intensity=5% and viscosity ratio=5 (if you are using two equation model). Get fully converged solution and write velocity and turbulence variables profile at pipe outlet.
At second stage, just set this profile at pipe inlet.
Dmitry is offline   Reply With Quote

Old   May 22, 2009, 06:50
Default
  #3
New Member
 
Mubarak
Join Date: May 2009
Posts: 2
Rep Power: 0
mmd014 is on a distinguished road
Thanks Dmitry for your reply. I am going to simulate many velocities of the flow and different mesh sizes. will one case be used for all the above cases.
mmd014 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
Turbulent pipe flow fudhail Main CFD Forum 0 April 14, 2009 05:23
Laminar flow or Turbulent flow mech FLUENT 0 January 27, 2007 19:51
laminar and turbulent flow in one simulation msna FLUENT 0 January 27, 2007 18:35
Reynolds and Turbulent Flow Frederic Dubinski Main CFD Forum 2 October 20, 2004 13:57
Hydrostatic pressure in 2-phase flow modeling (long) DS & HB Main CFD Forum 0 January 8, 2000 16:00


All times are GMT -4. The time now is 05:32.