Error when creating ICEM mesh output to CFX

Zoran

Hello,

I'd like to simulate radiation heat transfer between the walls in a rectangular duct. I created the channel inner surfaces with ICEM. Since radiation "only" depends on the surfaces I generated a 2D mesh : Create block > 3D Bounding Box > 2D Blocking. After setting the node distribution along the edges I converted the Pre-Mesh to unstruct mesh. So far, the mesh looks nice. But when I try to create the output for CFX I get an error-message:

"Error: Running ICEMCFD-CFX Interface Vers. 10.0.01 Error: no volume elements found. child process exited abnormally"

From another topic in this forum I've learned that "CFX5 is a 3D solver. It cannot use a 2D mesh." http://www.cfd-online.com/Forum/cfx_....cgi/read/8620

When creating a 3D-mesh (the space between the channel walls too) everything works fine! But the number of nodes becomes very large and I don't want the media (air) to participate in the Monte Carlo simulation.

Can anyone give me an advise?

Thank you! Zoran

ANSYS CFX 11.0, ICEM 11.0 - no SP1