CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Dynamic mesh, negative volume, help! (http://www.cfd-online.com/Forums/fluent/85356-dynamic-mesh-negative-volume-help.html)

vboris February 23, 2011 18:19

Dynamic mesh, negative volume, help!
 
Hi, I'm using FLUENT v 13.

it's a 3D case with a model of a cylinder. the motion of the cylinder is in xy plane. I use smoothing and remeshing strategy.

it works well in 2d, but when I change to 3D, after some iterations, the skewness of the first layer mesh outside the rigid moving body get very high, and negative volume appear.

Can anybody help me?
Thanks a lot


All times are GMT -4. The time now is 19:01.