CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

UDF velocity profile problem

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

LinkBack Thread Tools Search this Thread Display Modes
Old   January 18, 2005, 12:11
Default UDF velocity profile problem
Posts: n/a

When setting a velocity profile that contains zero values on an inlet plane I run into problems with tke and epsilion profiles on that same plane. The tke and epsilon profiles are also set using a UDF, however for the regions where the velocity is set to zero, the values of tke and epsilon do not agree with the set values in the UDF. "Banding" occurs where I get multiple values along the inlet plane. Since I set these profiles with a UDF on the whole plane, I do not understand why the values should change. Have you seen this before? Is there a fix?

Thanks for your time!

  Reply With Quote


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 03:44
UDF for 3d inlet parabolic velocity profile ? shahzeb irfan Fluent UDF and Scheme Programming 10 March 28, 2016 15:00
UDF velocity and temperature Raj FLUENT 3 February 1, 2009 18:29
UDF velocity profile at nodes Emad FLUENT 2 January 29, 2009 06:35
UDF for Velocity profile in 3D rectancular duct Emad FLUENT 0 January 21, 2009 03:11

All times are GMT -4. The time now is 02:27.