No, F-ducts etc won't make a different as its classed as internal cfd
for those who haven't read
How much is the challenge?
Free - unless you want to get a CFD license for personal use which you can contact Hibou Scientific Software about.
Can we put our cars in a different orientation to the supplied regulations/ tub?
No, cars must all be submitted in this orientation
Can teams change the wheelbase from the one supplied?
No
Can teams change the chassis height?
Yes - the top of the chassis can be between 550mm and 625mm from the reference plane.
Can we use a different gearbox and suspension?
No - this would give unfair advantages
Do we simulate exhausts? (Exhaust Blown Diffuser effects)
No - we are working on this but for now we are working with basic aerodynamics
Is my car legal?
Send us it and we will find out for you if you are unsure, we are working on a self assessment method for those involved with the challenge to be sure before sending the car for simulation.
Are you going to simulate cooling systems/ internal aerodynamics?
Due to the varying abilities of modelers who are involved with the KVRC, we believe it is best that these intakes/ outlets are blanked off for the reason that if 1 face is infinitely thin, when trying to simulate a geometry in CFD, the CFD can conflict with the infinitely thin face. In other words, if internal aerodynamics are not done properly the car wont work in CFD. So for this reason we will not simulate internal aerodynamics.
Can we choose drivers?
No, it is impossible to simulate a specific driver within a race situation with other drivers. This is an Aerodynamic challenge not a Management game.