CFD Online Logo CFD Online URL
Home > Forums > General Forums > Main CFD Forum

FSI- Pipe- uniform velocity profile inlet

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

LinkBack Thread Tools Search this Thread Display Modes
Old   April 6, 2010, 03:01
Unhappy FSI- Pipe- uniform velocity profile inlet
New Member
Join Date: Apr 2010
Posts: 1
Rep Power: 0
Absy is on a distinguished road
I am running a FSI calculation on software is developed by my lab members. I am trying to run a pipe with a uniform velocity profile at the inlet but I am getting leakage in the flow by 11%.
the another problem is the maximum velocity is not twice of the mean velocity even if the cylinder is long enough for full development.

lenght of cylinder: 0.02 meter
Diameter: 0.003
inlet velocity (mean velocity): 0.1
Rho: 1000 kg/m3
Mu: 0.003 kg/m.sec
outlet boundary: free outlet

any idea about why I am getting this leakage?

when I try to apply a parapolic constant velocity profile in the inlet
I dont get those problems.
any one can help?
Absy is offline   Reply With Quote


fsi, uniform constant velocity

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
3D UDF Paraboilc Velocity Profile (Can't Maintain) Sing FLUENT 12 August 7, 2017 06:25
UDF inlet velocity profile mismatch with Fluent ChristineL Fluent UDF and Scheme Programming 15 November 25, 2016 06:45
Annular inlet profile of experimental velocity fluid FLUENT 0 December 7, 2007 10:05
UDF problem : inlet velocity in cyl. coord. system Jongdae Kim FLUENT 0 June 15, 2004 11:21
Terrible Mistake In Fluid Dynamics History Abhi Main CFD Forum 12 July 8, 2002 09:11

All times are GMT -4. The time now is 19:04.