Can I build a mesh file in Hypermesh and import it into CFX 5.7 ? If it can be down, how ?

As I remember Hypermesh supports Patran Neutral format. Maybe I`m not right, but collectors translated to groups, than for each 3D elements collector you will get 3D region and for group of nodes you will get 2D region (maybe for 2D elements collector). But from patran you should use groups of elements and nodes. In worst situation you can use Nastran format (you must have different properties for different regions). And you can try Ansys format for which I recomend aproach similar to patran. Hope this helps...

Thanks. I'll try it .