ICEM 4.2 -> CFX-5.5.1

Luca

Hello.I've a turbine combustion chamber with several internal walls (thin surfaces,0 thickness) correctly meshed (unstructured tetraedral mesh) with ICEM. ICEM can see the internal walls and mesh them as surfaces, but when I import the mesh in CFX-5, all internal structures disappear from the list of the potential boundary condition surfaces. Reading the user manual of CFX-5 the problem seems to be that every internal walls MUST divide 2 different sub-domains in order to be treated as a boundary condition. Anyway, for geometry generation problems, it's very hard for me define in ICEM many different materials, and so many sub-domains in CFX-5. Someone have any ideas to bypass the problem? Thank you. Luca