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

UDF initialization

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

LinkBack Thread Tools Search this Thread Display Modes
Old   May 9, 2002, 10:11
Default UDF initialization
Posts: n/a

I have an uUDF file for velocity inlet, k and e. The velocity inlet varies with the time which has a peak value of 172.5m/s[=3/2*pi*36.6*sin(3*pi*flow_time/0.1)]. I have defined the pi = 4*atan(1)

Accidentally, a wrong UDF file was initialized so I reinitialized the case with the right UDF file and it gave me about 165m/s as a peak value. I have checked the B.D and the UDF file but unable to notice any errors. However, I was able to obtain the right peak when I recreated the cas file from msh file(=started from gambit mesh file putting B.C and UDF files again).

My guess is it's like "Matlab programme" where all the programme files start with "clear" in order to remove any data from the memory.

I would like to know if it's the case, there is any command that equivalents to "clear" or "clear all".

If not, I would like to know what causes the problem.



  Reply With Quote

Old   May 21, 2002, 09:23
Default Re: UDF initialization
Posts: n/a
there is in deed a "command" which acts as clear. load the udf-library anew and it will work.

  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 parallel error: chip-exec: function not found????? shankara.2 Fluent UDF and Scheme Programming 1 January 16, 2012 23:14
initialization species UDF louiza FLUENT 7 November 26, 2009 04:56
UDF sucessfully interpreted initialization error duaiduaihu FLUENT 0 May 11, 2009 22:18
UDF Error at initialization Atsu FLUENT 3 April 17, 2006 22:40
UDF, UDF, UDF, UDF Luc SEMINEL Main CFD Forum 0 November 25, 2002 05:01

All times are GMT -4. The time now is 06:34.