Hello Deep,
I recommend you to first take a cross section of the propellor blade so that you get a airfoil kind of geometry in design modeller and then create c mesh domain and then in ansys meshing through mapped face meshing and edge sizing create a conformal mesh . I have attached the AIC course link for your reference with detailed information.
Mesh — Lesson 4 - ANSYS Innovation Courses
I hope this solves your problem.
Thanks,
Chaitanya Natraj