[sacrover]

Hi,
I am trying to mesh an external flowfield around a propeller using hexa blocking. The computational domain is divided into two parts:
1. Farfield (stationary frame)
2. Disc around the blade (Rotational frame)

I've split the blocks and used O-grids around the blade section. Everything is fine until I click Pre-Mesh>Project Surfaces. Grid lines are crossing each other almost everywhere along the blade. I've tried moving the O-grid vertices that are associated to the airfoil sections but there's no improvement. I've attached the screenshots.

Thanks for your help.