Federico Alzamora Previtali

Hello Alex,

generally a structured mesh is best for simpler models, where you can align the mesh with the direction of the flow. For the flow around a Formula car with irregular shapes and where you can expect vortices, etc., it might be easier to go with an unstructured mesh. 

We have a course in the Ansys Innovation Space that goes through the steps of setting up such simulation Aerodynamics of an FSAE Car - ANSYS Innovation Courses

I hope this helps! and good luck to your team