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-   -   Dynamic Mesh Problems (http://www.cfd-online.com/Forums/fluent-udf/101540-dynamic-mesh-problems.html)

DSMeck May 7, 2012 07:09

Dynamic Mesh Problems
 
Hi everyone,

I have some problems in simulating a 3d store seperation with Fluent 13.0.

I am not sure if it is nessesary to use a cg-motion_udf in combination with 6dof_prop_udf for this movement. Is a 6dof_prop function sufficient?

The more important problem is the remeshing option. Everytime I get negative elements. I tried nearly everything I found about this problem. (reducing timesteps...). Finally it seems like this option doesn´t work with pyramide cells.
But my geometry is very complex and the boundary conditions are very important. Because of this I need a structured inflation. How can I manage this?

Is somebody able to help me? Thanks for your help.

Regards,
DSMeck


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