Keyur Kanade
Ansys Employee

Trailing edge has very sharp angle. The first layer height of prism layer is very small. With this combination, you will get skewed elements. 

With the trailing edge, you may need some modification. You may need to cut a small part of the trailing edge to avoid that sharp angle. 

Another option is to get full hex mesh. You can find a video on youtube on creating hex mesh for airfoil. 




If this helps, please mark this post as 'Is Solution' to help others.

Guidelines on the Student Community

How to access ANSYS help links