LES solver for F1 diffuser
 

Hello everyone :)

I need to use OpenFOAM to simulate the flow inside the diffuser of a F1 car. In particular I'm trying to capture the unsteadiness of the flow (in the wind tunnel it was observed that close to the side plates 2 unsteady vortices take place).
I know that I should use a LES model but witch one??
In addition I would like to know if OpenFOAM has an hybrid LES-RAS solver and how it is called.
Thanks in advance for your help,

Luca