Keyur Kanade
Ansys Employee

You can generate hex mesh with ICEMCFD for this geometry. But it would be all manual process and would take a lot of time and effort. You can go with tet mesh instead which would be much faster. 

Please go through help manual for more details 



How to access Ansys Online Help Document

Guidelines on the Student Community

Fluids Engineering Courses | Ansys Innovation Courses