I don't know Ciro - but I think you have the right sort of idea (is it mainly the diffuser that cause the problem 'tho?)
When these discussions come up - often slipsteaming and over-taking get mixed in the same conversation. I think it can confuse the issue.
Sure - getting a tow helps overtaking. But it's not essential.
Giving cars the ability to follow each other as the chose and as close as they like would help overtaking (without needing a slipstream). We see cars with a significant laptime advantage being unable to get past a slower car these days. Because their speed advantage in corners is negated by the car in front. If they could hold that corning advantage, they would get into the next straight at a higher speed and have much more chance of making the pass stick.
OK - may racing experience is limited to Sim racing - but the tactics still work. Jamming yourself up someones arse rarely achieves anything other than contact and you getting slowed down; hanging back a touch before a crucial corner and getting a clean fast drive off that corner often sets you up for a pass at the end of the next straight (as if you had an overtake button
). Of course the opportunist pass can happen, but the do in F1 too - but are rare and rely on a mistake from the other guy.
So, cleaning up the wake is surely more important than allowing slipstreaming.
A slight aside - seeing top speed figures in the F1 races may not be an indication of engine power or low downforce, it might be an indication of a car that leaves the last corner with more speed than it's rivals - I guess a chart showing the accleration to top speed would be a better indicator.
i disagree. The field is so tight and performance between cars so close than not allowing slipstream would be a severe limitation.
Not allowing slipstream would restrict overtakings to straight lines.
If you want to overtake in a corner you need to go offline that means you need to take a longer line, if you don't enjoy a better acceleration out of the corner you can't overtake.
I Think one great thing in the rare occasions of overtaking in F1 is that the moves are quite not classical many times occuring in portions were other series running can't do that.
There're many in-corner overtaking in F1, and the last thing i want to see is the classical outbrake-straight line passes only. I love when the track overtaking possibilities are increased by your car possibilities.
Slipstream and cornering are opposed. Slipstream means loss of downforce.
But actually in F1 we are in a situation where we don't even have slipstream to significant extent, and yet you lose downforce...so we have the worst of both worlds.
If slipstream was present and turbulent wake sufficiently weakened, the downforce loss caused by slipstream would be bearable because restricted.
You actually have to go as close as half a car lenght at 250km/h to lose 20% of drag, while you lose about 45% of your downforce!
With the rev limiter the small size of the slipstream is even more a problem.
As of final note, the diffuser's turbulences are not a problem and they decay very fast. The problem is the turbulences of the rear wing that because of the coupling with the diffuser are strengthened and extend far away from the car to mix with the upwash.
Now the upwash is a problem and needs to be carefully shaped.
Well a simple solution would be small venturi channels..I don't understand why F1 is so afraid of that; Not entering into the "whole grip generated by ground effects" we could use GP2 like package (venturi+wings) and that works fine..