[DarrenC]

Hi everyone

I am working on a hybrid structured/unstructured mesh simulation at the moment with pyramid elements at the interface of both the meshs. My problem is the structured part of the mesh is moving dynamically as a solid body and it is causing the pyramid elements of the unstructured mesh to collapse.

I am using both smoothing and remeshing methods. I am only able to preview it up to a certain point and then negative volume was detected. And when I tagged the negative volume for checking, it is always a pyramid element.

Is it true that Fluent Dynamic Mesh does not remesh pyramid elements? If so how can I go about it as a pyramid element is the only element that can connect a hexahedral and tri/tetra region together.

I am simulating a pitching airfoil by the way and the structured mesh is the boundary layer mesh while the unstructured is the farfield. Thanks for your help

Regards,
Darren