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

Velocity Profile

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 5, 2012, 10:51
Default Velocity Profile
  #1
New Member
 
Bhai
Join Date: Mar 2012
Posts: 2
Rep Power: 0
bhai is on a distinguished road
Hi,

I am writing a small piece of CFD code. I have a simple problem. I have a flat plate over which water is flowing (laminar). I want to give a 2D velocity profile to that flowing water. Is there any empirical correlation (analytical solutions are obviously too difficult to implement in a CFD code) that I can use?
bhai is offline   Reply With Quote

Old   March 5, 2012, 17:30
Default
  #2
New Member
 
Victor Azevedo
Join Date: Aug 2010
Posts: 5
Rep Power: 15
victorwfreire is on a distinguished road
I didn't understand what's your main problem. But, you can consider a velocity profile as known, in your case. There are some classic profiles, as the 1/7, for example.

You can also use a constant velocity profile, just to test your code.
victorwfreire is offline   Reply With Quote

Old   March 6, 2012, 04:13
Default
  #3
New Member
 
Bhai
Join Date: Mar 2012
Posts: 2
Rep Power: 0
bhai is on a distinguished road
thanks victor for ur reply. but isn't the 1/7th profile for turbulent flow? i have clearly mentioned its a laminar flow. see, my problem is, my code is good enough to simulate water flowing over the flat plate, which i can do by giving a pressure difference. but in that case, i have no control over the velocity profile (if at all, a velocity profile develops). i want to specify a realistic velocity profile as the inlet boundary condition, so that the flow adapts to it when it enters.

as i said, the flow being laminar, 1/7th law is not applicable. any other suggestions please?
bhai is offline   Reply With Quote

Reply

Tags
flat plate, laminar flow, velocity profile

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[UDF] Relative coordinates in logarithmic velocity profile cfdworker Fluent UDF and Scheme Programming 25 July 13, 2017 04:44
Logarithmic velocity profile cfdworker Fluent UDF and Scheme Programming 0 April 23, 2009 20:09
[boundary condition] logarithmic velocity profile cfdworker FLUENT 2 April 18, 2009 00:36
Prescribed inflow velocity profile - how to? Alan Main CFD Forum 10 October 28, 2005 13:14
Terrible Mistake In Fluid Dynamics History Abhi Main CFD Forum 12 July 8, 2002 10:11


All times are GMT -4. The time now is 03:21.