CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Issues with dynamic meshing (http://www.cfd-online.com/Forums/fluent/64349-issues-dynamic-meshing.html)

sridhu88 May 8, 2009 02:22

Issues with dynamic meshing
 
Hi,

I am working on a 2D problem where you have a beam like structure inside a square enclosure. The beam is fixed at one end and oscillates up and down(I used rigid body motion UDF to do this). But the dynamic meshing isn't working properly when I use rectangular elements near the beam. It seems to work reasonably well when I have triangular elements near the beam. But the Gambit boundary layer meshing option allows only rectangular elements near the boundary. So how do I make my model work for rectangular elements also?

Also I am confused about which dynamic mesh algorithm(Smoothing, Layering, Remeshing) I should be using..I would be happy if somebody can explain about this also.

Thanks,

Sridhar

mrestrepo30 June 11, 2009 16:46

Hi,
what is the configuration you have for the dynamic mesh parameters? are you using layering accompanied by smoothing or remeshing?
If you are only using layering, try typing
define/models/dynamic-mesh-controls <enter>
define/models/dynamic-mesh-controls/ sp <enter>
define/models/dynamic-mesh-controls/sp/soas <enter>
[yes]

this will "activate" the layering option for the structured mesh.


All times are GMT -4. The time now is 08:20.