Negative volume in internal combustion engine analysis
 

Hi,

I m trying to make an internal combustion engine analysis in fluent. I have set dynamic mesh zones.when displaying zone motion, it looks like ok. But when I Preview mesh motion, It gives this error and makes negative volume. What can I do to fix this problem? I realized that it is about cylinder motion. But I could not find the solution.

"Warning: Mesh projection of deforming dynamic zones exceeds reasonable limits.
Please verify that the correct geometry definitions have been specified. "

I have found that my deforming and stationary surfaces are not matching. Can I measure an edge lenght or diameter in fluent?

hello!
I am having the same problem right now also!
did u find any solution for that?