How to "crop" a structured mesh
 

Problem: I have meshed with ICEM a long duct with some features inside (structured mesh). Now I need to run a simulation of just a portion of it. The duct has got a squared section and the new domain can be simply obtained but slicing it up perpendicularly to the streamwise direction.

Question: Is there a way to "crop" my mesh so that I don't have to rebuild the structured mesh from scratch?

If you have your mesh on your screen, you can manually delete obsolete elements in the Edit-mesh menu. Isn't that a viable way?

Hi cfdEng_,

is there a reason you that you cannot simply split the blocking at the duct's new end?
This approach would spell:
Create a new outlet/inlet surface (geometry entity). Then split your blocking at that region. Delete (permanently) the now obsolete blocks, and re-associate the new boundary entities.

Best,
Sebastian