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

moving and slip wall boundary

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 29, 2005, 15:01
Default moving and slip wall boundary
  #1
hongchun
Guest
 
Posts: n/a
Dear all:

I got a problem and need your help. I want to model a water drop oscillation on a solid wall, which vibrates asymmetrically. The drop might move on the surface. Therefore, the boundary condition for the wall is moving wall and aslo a slip wall. I read the manual of FLUENT, it says that I can not define a slip moving wall. Is that true? What should I do?

Thanks a lot

chun
  Reply With Quote

Old   March 29, 2005, 19:18
Default Re: moving and slip wall boundary
  #2
debs
Guest
 
Posts: n/a
You can add a partial slip boundary condition through an udf . I'm not sure of how to write a udf. But i can help you to incorporate a partial slip BC.

  Reply With Quote

Old   March 29, 2005, 20:54
Default Re: moving and slip wall boundary
  #3
hongchun
Guest
 
Posts: n/a
Dear Debs:

Actually in my case, the wall moves with a sinwave U, so for the slip boundary condition u = U + A*du/dy(y=0), A, the slip coefficient. You mean I can write a UDF for this equation?

I don't know how to write UDF and need to read the manual.

Thanks a lot
  Reply With Quote

Old   March 29, 2005, 21:34
Default Re: moving and slip wall boundary
  #4
debs
Guest
 
Posts: n/a
Check the manual and also when setting boundary conditions in the solver you can remove the no slip setting and include the udf
  Reply With Quote

Old   July 9, 2010, 11:29
Default
  #5
New Member
 
Prakash Paudel
Join Date: May 2010
Location: Toronto
Posts: 25
Rep Power: 7
Prakash.Paudel is on a distinguished road
Hey debs, can u please tell me how exactly would u impose partial slip BC??? i appreciate ur help
Prakash.Paudel is offline   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
UDF for slip and moving wall lichun Dong FLUENT 3 March 26, 2014 05:37
I need Moving Wall Slip hansel OpenFOAM Running, Solving & CFD 8 September 7, 2009 20:55
Moving boundary with No-Slip wall Rohan CFX 1 August 2, 2008 02:52
Slip Boundary Condition for Moving Boundary Shukla Main CFD Forum 3 November 11, 2005 16:02
slip coefficient for moving wall qb jiang FLUENT 0 February 12, 2003 23:23


All times are GMT -4. The time now is 22:38.