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

Non constant boundry conditions

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

Reply
 
LinkBack Thread Tools Display Modes
Old   February 14, 2001, 07:47
Default Non constant boundry conditions
  #1
Mounir
Guest
 
Posts: n/a
hi, We are simulating heat transfer in a stirred tank using Fluent5. The tank is heated from outside (walls). When the solution is obtained, the shaft and the impeller keep the same initial temeprature (since the are walls). Is there a way to make the heating process include the shaft and the impeller (non constant boundries) ? may be by using UDF (how?)? Best regards Mounir
  Reply With Quote

Old   February 14, 2001, 09:05
Default Re: Non constant boundry conditions
  #2
Jonas Larsson
Guest
 
Posts: n/a
You can use a UDF to make a varying boundary conditions. If you ask Fluent they will send you an example - one of their standard examples does just this.

You might also consider meshing the shaft and impeller and solve heat-conduction in those solids to represent the physics better. I don't know if this is what you want but it doesn't cost much and usually works very well.

  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
Problem with initial conditions Jaskirat CFX 3 March 26, 2011 04:42
boundry conditions pardeep kumar FLUENT 1 February 15, 2009 13:30
Fluent accuracy and boundary conditions Paolo Lampitella FLUENT 0 June 12, 2008 06:25
selection of model &setting boundry conditions rajesh FLUENT 0 March 2, 2008 09:22
Boundary conditions? Tom Main CFD Forum 0 November 5, 2002 02:54


All times are GMT -4. The time now is 15:51.