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

 October 24, 2009, 22:22 question about uds #1 New Member   Tanwei Join Date: Oct 2009 Posts: 2 Rep Power: 0 hello,everyone. I am new to Fluent. Here I have a question. I have added an UDS(potential) . But I confused when I imposed the BC. There are two type of BC for UDS. One is "Specified flux",and the other is "Specified value". And what I know is that "Specified flux" means "-diff*(grad(potential))". Here is my question! As for insulating wall, we should choose the BC with "Specified flux" equal to zero. Is it right? Another question is that I imposed a constant current on another boundary, and this time how should I set the value of "Specified flux"? Additional, Specified flux=-diff*(grad(potential)). current density=-diff*(grad(potential)). with the above two equations, we can conclude that "Specified flux=current density", is it right?

 October 27, 2009, 09:55 #2 New Member   Tanwei Join Date: Oct 2009 Posts: 2 Rep Power: 0 Is there anyone who can help me or give me some suggestion?

 July 5, 2015, 11:22 #3 New Member   xing lu Join Date: Jun 2015 Posts: 1 Rep Power: 0 Hi dear, I encountered the same problem as yours. How did you set the specified flux for your potential by UDF?

 Tags current, current density, potential, specified flux, uds

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post Z FLUENT 5 April 2, 2005 14:45 Z FLUENT 1 March 31, 2005 15:14 Z FLUENT 1 March 31, 2005 15:08 Z FLUENT 0 March 25, 2005 07:20 Greg Perkins FLUENT 1 March 14, 2002 22:54

All times are GMT -4. The time now is 02:40.