How to make a "baffle" in ICEM-CFX
 

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

Re: How to make a "baffle" in ICEM-CFX
 

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.

Re: How to make a "baffle" in ICEM-CFX
 

Hi myron,

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

Thanks.

Joe

Re: How to make a "baffle" in ICEM-CFX
 

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

Re: How to make a "baffle" in ICEM-CFX
 

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

Thank you very much!

Joe

Re: How to make a "baffle" in ICEM-CFX
 

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

Re: How to make a "baffle" in ICEM-CFX
 

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

Thanks, Joe

Re: How to make a "baffle" in ICEM-CFX
 

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.

Re: How to make a "baffle" in ICEM-CFX
 

Hi myron,

That's brilliant, the question is solved perfectly.

Thank you!!

Joe

Re: How to make a "baffle" in ICEM-CFX
 

Hi Ranga,

Thank you for your kindly help.

Joe

Re: How to make a "baffle" in ICEM-CFX
 

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