So what I’m doing is I’m trying to simulate the aerodynamics and air resistance of my Dragster for TSA, and to do it I’m using the Incompressible Simulation to try and run it with air
But the problem is I have never run a simulation before and I don’t know how to set up the boundary conditions for the simulations
Hi @LinkRVA, thanks for posting on the forum and welcome to the SimScale Community 
Our new users often compliment our introductory tutorials for their usefulness and share with us that running 2-3 of them before starting their own analysis tends to help in clearing things up. These two might be particularly relevant:
By running these tutorials, you’ll notice that a first step in a CFD simulation is to generate a flow region, that is, a volume where the fluid would be. Take a look here for more information on this topic:
Cheers
Igor