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

Problem with BC on non-overlapping grid interface

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

LinkBack Thread Tools Search this Thread Display Modes
Old   August 29, 2006, 11:21
Default Problem with BC on non-overlapping grid interface
Ori Levin
Posts: n/a

I am using grid interfaces in order to create nice meshes. However, when ever I end up with a non-overlapping part of one interface surface that should be a wall, I am not able to get a no-slip boundary condition.

When defining grid interfaces, new surfaces "wall-XX" corresponding to the non-overlapping regions are created (if no non-overlapping region, they are simply empty). As I understand it, those new surfaces should take care of the boundary condition as you wish to have. But even though I keep the default condition of a no-slip wall I get slip conditions at these "interface walls".

What should I do to receive no-slip boundary conditions at these non-overlapping interfaces? To further help you to help me, I have prepared a home page with some figures and the Gambit and Fluent files for a small example problem located at:

  Reply With Quote

Old   August 29, 2006, 19:32
Default Re: Problem with BC on non-overlapping grid interf
Posts: n/a
Hi Ori,

Check out the viscosity of the fluid and the speed at which it is flowing near the area of concern. Boundary layers depend on these issues as well.


  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
Wind turbine simulation Saturn CFX 57 February 6, 2018 06:09
interface information from fem grid ztdep Main CFD Forum 0 January 14, 2011 22:13
Define grid interface mahzad Main CFD Forum 0 June 24, 2010 09:28
Interface problem Shahriar FLUENT 10 December 10, 2008 11:44
Combustion Convergence problems Art Stretton Phoenics 5 April 2, 2002 06:59

All times are GMT -4. The time now is 10:15.