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

boundary profile

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

Reply
 
LinkBack Thread Tools Display Modes
Old   February 22, 2006, 07:05
Default boundary profile
  #1
antonietta
Guest
 
Posts: n/a
Hi everybody! If I want to define a velocity profile on a boundary, how can I do? I have to take into consideration the effect of the wind and actually i have divided the wall in a series of surfaces on which I have defined a constant value of velocity. Doing this way I 'm obliged to draw the grid agian everytime I waqnt to change the velocity profile. If I can write a file in which I specify the relationship between the velocity and the height I'll work faster.Can you suggets me something? Thanks a lot anto
  Reply With Quote

Old   February 22, 2006, 07:57
Default Re: boundary profile
  #2
Makaveli
Guest
 
Posts: n/a
It is possible to write a UDF that will define the velocity profile in the way you wish as long as the profile can be describe mathmatically. Take a look at section 10.1.1 of the udf manual for an example that is very similar to you problem.
  Reply With Quote

Old   February 22, 2006, 11:45
Default Re: boundary profile
  #3
Anindya
Guest
 
Posts: n/a
Please search this fluent forum for past messages. There was a 2D/3D UDF posted here for velocity profile varying with height (BL kind of flow) . It was posted last year, 2005. sometimes during the end I believe. Modify that a little bit to suit your needs.
  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
velocity profile inlet boundary condition question Lcw FLUENT 3 August 3, 2012 05:53
Modeling of boundary layer wind profile in CFX 5 Cuong NK CFX 7 April 26, 2012 08:23
Boundary profile and initialization shalu FLUENT 2 July 28, 2006 07:32
Convective Heat Transfer - Heat Exchanger Mark CFX 6 November 15, 2004 16:55
Boundary conditions profile Christophe Doublet FLUENT 1 June 14, 2001 00:27


All times are GMT -4. The time now is 16:11.