Hi Edward,
Please start with global meshing options with the default setting and then perform some local meshing operations at the blade’s tip by selecting the refinement option to better capture the edges and corners of the blade.
Kindly upload the screenshot of the detail of the meshing option that you have tried.
for more detail, you can follow the following links related to the ansys meshing
https://www.youtube.com/watch?v=24d0e20bnEA
https://featips.com/2022/12/27/ansys-mesh-methods-explained/
Regards,
Sampat