My geometry is simple. It is one big cylinder sliced into 3 cylinders with the same diameter but different height. I would like to create mesh using ICEM blocking o-grid for the cylinders. Because I need to specify different physical conditions to the 3 cylinders, in ICEM I have to make sure the 3 cylinders are separate cell zones. However, it wouldn't work with 3D blocking. When I want to create another block, the popped window asks whether I want to merge with the previous block or replace it. I have tried many ways but couldn't make it work.
To summarize, the issue is, I need to mesh multiple cell zones, and keep the mesh as multiple cell zones when I transfer to Fluent, but I can only create a single volume mesh in ICEM. Is there a solution with ICEM blocking? Thanks!
Software: ANSYS 17.0 ICEM