Hi, I've recently met a problem of using baffle in a 3D CFD model. I can draw a surface(2D plane)(which I want to use as a baffle) in the geometry model in ICEM-CFX and then producing the mesh, but the surface can not be recognized by CFX-pre.

Could someone give me any suggestions on this?

Thanks in advance.

Joe

In ICEM you need to mark the surface as 'Internal Surface' for it to preserve the surface mesh. I think that's somewhere in the Surface Meshing Parameters or you can use the Mesh Parameters by Part and I think there's a check-box for Internal Surface.

Hi myron,

Your suggestion is very helpful and encouraging. But it still doesn't work..

Thanks.

Joe

Do you see the surface mesh on that surface while still in ICEM CFD? Are you building Hex mesh or Tet mesh?

Hi myron, I think you were right. I tried a tetra mesh today and it works all right.

Thank you very much!

Joe

Enable "Int Wall" option wall Under Part Mesh set up in ICEMCFD 11.0.

Hi myron, Is it possible to use internal surfaces in hex mesh (blocking method)?

Thanks, Joe

To do it in Hexa - you need to use the projection options to project those block 'faces' to a particular 'Part'. Otherwise those faces are simply treated as internal and not projected to anything. If the surfaces has non-straight edges, you'll also need to project the edges to the bounding curves.

Hi myron,

That's brilliant, the question is solved perfectly.

Thank you!!

Joe

Hi Ranga,

Thank you for your kindly help.

Joe

I can grid your model easily,can you send your model to me?