CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   CFX (http://www.cfd-online.com/Forums/cfx/)
-   -   Interface troubles (http://www.cfd-online.com/Forums/cfx/70819-interface-troubles.html)

Samu December 7, 2009 09:12

Interface troubles
 
1 Attachment(s)
Hello,
I'm trying to modeling a rotating machine. So I've to use an fluid fluid interface for the rotor stator connection, I'm using a GGI connection.
But I've got somme troubles when I'm looking at the vorticity. As you can see on the image, the vorticity is not well transmit at the interface.

Have you already seen this problem ?

Attachment 1677

ghorrocks December 7, 2009 18:14

Vorticity is not "transmitted" at the interface. mass, momentum and energy is. The vorticity is calculated from the velocity field and I suspect the vorticity calculation is not exact adjacent to the boundary.

If you look at the pressure, velocity or temperature fields they should be continuous as they are "transmitted" at GGIs.

Samu December 8, 2009 03:38

Ok
thanks a lot, I have look for the velocity and the pressure flieds and the continuity is good at the interface.


All times are GMT -4. The time now is 19:04.