I am learning OpenFOAM as a hobby and using my Vespa racing as the topic to apply it to. The objective is to produce modifications that improve the top speed (as well as getting some values such as lift). I am basing my simulation on the motorbike tutorial.
The motorbike tutorial uses the kOmegaSST turbulence model but someone had suggested to me in the past that SpalartAllmaras might be a better choice. I have access to a super computer so saving CPU cycles is not much of an issue for me. Below is a picture of my model (which I am cleaning up). Is kOmegaSST a good enough choice or is there another worth focusing on?