Hi @lottonello - cool project!
First of all it is always recommended to share the project link (if existent) in the post you have created.
Regarding the question of turbulence models you can have a look at this blog post from my friend @ssolmaz: Which turbulence model should I choose for my analyses - it is always recommended though to have some kind of comparison available in form of data or maybe you have a paper that tested this scenario.
If you do not have any experience in CFD I recommend having a look at the following pages:
- Basic Tutorials
- Fluid Dynamics tutorials from our doc
- Having a look at the Public Project section to get some inspiration and see how other projects have been set up
- Last but not least the tutorials on our YouTube channel
Let us know if you have any further questions.
Jousef