Block Meshing Nacelle in ICEM
 

Hello everyone, I am a novice to ICEM and I am struggling with creating a block mesh for a Nacelle (Geometry is from DPW6). I am trying to define the blocking so it captures the nacelle surfaces using edges. However, I keep also generating meshing within the nacelle hollow. The attached images hopefully make the problem clear.

Any advice will be greatly appreciated!

Joseph.

Maybe it could be possible to create and O-grid and delete the central block. Something like this: https://www.youtube.com/watch?v=ATckaP_uWs0&t=402s ?