- Login or Register
No account yet? Sign up
Team: Pat Fry (TD), Nikolas Tombazis (CD), Stefano Domenicali (MD), Simone Resta (DTD), Corrado Lanzone (Head of production)
Drivers: Fernando Alonso (3), Felipe Massa (4)
bhallg2k wrote:You described a sort of eddy generator, and I don't think that's how this works.turbof1 wrote:So yes, a small correction on my part: it is a duct that leads into the cockpit (and perhaps further down to the kers), but the duct's main function is to improve flow under the nose, as I explained.
The angled wing pylons create a Venturi effect, which decreases static pressure under the nose.
This negates the slight lift created by the mandatory neutral center section of the wing.
The problem is that the boundary layer is susceptible to the effects of the adverse pressure gradient at the end of the Venturi (the area between Pos 2 and Pos 3 in the above diagram and denoted in the image below).
If the boundary layer separates as a result of that adverse pressure gradient, it increases parasitic drag and chokes flow, which I think was a serious issue with the F2012.
Not only did the team test different pylons last year...
(These were tested in-season, too.)
...the team also investigated and tested a myriad components to improve flow around the sidepods.
Because the effective height of the nose on the F138 is actually higher than that of the F2012, there's more air flow underneath it. I believe the slot "peels away" the boundary layer at the point of the adverse pressure gradient in order to prevent it from separating. In this way, the team gets the benefit of the Venturi effect (effective downforce) without any of the drawbacks experienced on the F2012 (chocked flow at the nose, sidepods, Coke bottle, etc), because it's damn difficult for air pressure to increase when its volume is simultaneously decreased.
Really? Have you seen precisely where inducted flow is vented to cool the driver, or have you only seen what appears to be an inlet in an area that merely suggests it serves to cool something somewhere? Speculation is speculation is speculation; you can't have it both ways.ringo wrote:[...]
All we can say at this stage, for lack of evidence and numbers, is that's a cooling hole. A hole much more effective at cooling a driver than if it was a smaller hole placed at the tip of the nose.
[/quote]bhallg2k wrote: (Personally, I think a champagne shower on the podium is easily the most effective way to cool a driver. That's just me, though.)
How would they do that? To blow air against the slipstream, would require fans, which would be illegal. And why would they want to lift the nose, when all teams are trying to get DOWN force?GrizzleBoy wrote:What if they were actually blowing air out of that hole, stalling the airflow beneath the nose/tub and creating (more?) lift at the front of the car?
Everyone wants to lift the nose at the end of straightline where the downforce pushes the car to the ground with highest force because of highest speed !gilgen wrote:How would they do that? To blow air against the slipstream, would require fans, which would be illegal. And why would they want to lift the nose, when all teams are trying to get DOWN force?GrizzleBoy wrote:What if they were actually blowing air out of that hole, stalling the airflow beneath the nose/tub and creating (more?) lift at the front of the car?
radosav wrote:Everyone wants to lift the nose at the end of straightline where the downforce pushes the car to the ground with highest force because of highest speed !gilgen wrote:How would they do that? To blow air against the slipstream, would require fans, which would be illegal. And why would they want to lift the nose, when all teams are trying to get DOWN force?GrizzleBoy wrote:What if they were actually blowing air out of that hole, stalling the airflow beneath the nose/tub and creating (more?) lift at the front of the car?
Why would they lift the front end of the car? to loose Front grip so it's harder to turn?GrizzleBoy wrote:What if they were actually blowing air out of that hole, stalling the airflow beneath the nose/tub and creating (more?) lift at the front of the car?
Actually was to reduce drag on the front wing at high speed only or in high speed corners should stall partially the side f the wing that was not being effective, but it never really worked and it is also not legal now.radosav wrote:Why did Mercedes stall front wing with their DDRS ? So that they cahave low ride height , to get more downforce from the floor!
I've read that with reduced drag they were able to lower ride height too !sirexilon wrote:Actually was to reduce drag on the front wing at high speed only or in high speed corners should stall partially the side f the wing that was not being effective, but it never really worked and it is also not legal now.radosav wrote:Why did Mercedes stall front wing with their DDRS ? So that they cahave low ride height , to get more downforce from the floor!