export a 3d blocking (structural) mesh at Fluent?
 

Pls How I can export a 3d blocking (structural) mesh at Fluent?

Fluent supports unstructured mesh

where as CFX can handle structured mesh.

Μy problem is that I have to simulate a part of centrifugal impeller by Fluent and I make the mesh by blocking. Ι can see the pre-Mesh...But I can't export... I have to convert it ?

yes. Pre - Mesh - Convert to unstructured mesh. this will produce hexa mesh.

Then Output> Solver ansys fluent - Apply proper boundary conditions - export.

How I convert it?

Mouse Right click on Pre- mesh , you will see convert to unstructured mesh.

Thanks a lot....