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

boundary layer thickness for pipe flow

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 2, 2008, 23:57
Default boundary layer thickness for pipe flow
  #1
ranjith
Guest
 
Posts: n/a
Hi,

is there any empirical relation for boundary layer thickness for a fully developed turbulent pipe flow

regards Ranjith
  Reply With Quote

Old   January 3, 2008, 09:01
Default Re: boundary layer thickness for pipe flow
  #2
Jia
Guest
 
Posts: n/a
There is a exact solution of the fully developed pipe flow(Poiseuille Flow), u=1/(4mu)*dp/dx*(r^2-a^2), where mu is dynamics viscosity, dp/dx is the pressure gradient and a is the radius of the pipe. May this help.

Jia
  Reply With Quote

Old   January 3, 2008, 09:02
Default Re: boundary layer thickness for pipe flow
  #3
Jia
Guest
 
Posts: n/a
Hi,Ranjith!

There is a exact solution of the fully developed pipe flow(Poiseuille Flow), u=1/(4mu)*dp/dx*(r^2-a^2), where mu is dynamics viscosity, dp/dx is the pressure gradient and a is the radius of the pipe. May this help.

Jia
  Reply With Quote

Old   January 4, 2008, 23:58
Default Re: boundary layer thickness for pipe flow
  #4
ranjith
Guest
 
Posts: n/a
thanks jia....I suppose poiseuille's relation applies to fully developed laminar flow while I am interested in fully developed turbulent flow. I have got a relation for turbulent flow called 'seventh root law' and I hope that will give me the boundary layer thickness

ranjith
  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
Boundary layer in a pipe Clementhuon OpenFOAM Native Meshers: snappyHexMesh and Others 6 March 12, 2012 13:41
specifyying a boundary layer thickness at inlet Fayyaz Hussain ASGHAR FLUENT 0 June 24, 2007 06:08
Boundary layer thickness in pipe entrance Bo Jensen Main CFD Forum 2 April 6, 2007 22:53
Please help with flow around car modelling! Tudor Miron CFX 17 March 19, 2004 20:23
boundary layer thickness 98.4F Main CFD Forum 1 December 29, 2000 08:23


All times are GMT -4. The time now is 05:24.