Rob
Ansys Employee

Use inflation and resolve the wake region. The graphs will show you the quality of the cells, what you're lacking is resolution of the boundary layer, separation and wake regions. Read the Body of Influence part here https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v222/en/flu_ug/tgd_user_sf_types.html%23tgd_user_sf_boi  to show how I'd mesh this. In Ansys Meshing the functions are there, but the images are better in the Fluent Meshing documentation. 

The data you get from your model will not be accurate, but the general principle is shown.