Floor slot near rear wheel
Posted: 14 Apr 2012, 18:40
What is the possible theory for the slot in the floor just in front of the rear tire?
Brian
Brian
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Re: Floor slot near rear wheel
Posted: 14 Apr 2012, 18:51
probably the same as the exhausts last year. Generate a vortex using the exhaust gasses streaming towards it to seal the diffuser.
Re: Floor slot near rear wheel
Posted: 14 Apr 2012, 19:06
Then we should have seen them last year.Lycoming wrote:probably the same as the exhausts last year. Generate a vortex using the exhaust gasses streaming towards it to seal the diffuser.
This seems to feed the tire 'skirt' issue which I though was considered bad.
Brian
Re: Floor slot near rear wheel
Posted: 14 Apr 2012, 19:08
Last year, the exhausts were closer to the diffuser than that, so that slot wouldn't do that job, as there would be no exhaust gases to feed it.
Re: Floor slot near rear wheel
Posted: 14 Apr 2012, 20:50
I was under the impression that last year the same effect was created by the shape of the exhaust outlets. I mean, the slot sits right where the exhaust outlets did last year so we could not have seem something like it.
Re: Floor slot near rear wheel
Posted: 14 Apr 2012, 21:16
My guess would be that it generates a vortex to stabilize flow distortion around the wheel.
I can imagine such instability would play hell with a team trying to "seal" the diffuser absent strong exhaust. The slot-generated vortex then behaves almost like a virtual wheel fairing to combat the problem.American Physical Society wrote:"[Tests] illustrate that unsteadiness, large-scale separation, and longitudinal vortical structures dominate the turbulent airflow behind the tire. The flow is very unstable and has the tendency to fluctuate from side to side. The results also show that there is a region of separated flow close to the back of the tire where air particles recirculate and travel forward faster than the car moves. Finally, the simulations show that a system of counter-rotating vortices overwhelms the wake of the isolated tire very far downstream."
Re: Floor slot near rear wheel
Posted: 14 Apr 2012, 23:45
A vent for the inner flow from the letterbox slot?? 
Re: Floor slot near rear wheel
Posted: 23 Apr 2012, 17:43
Anyone know if this is the same update as they were trying to cover on the grid at Bahrain
Re: Floor slot near rear wheel
Posted: 23 Apr 2012, 18:09
They were standing slightly further up the car, trying to cover the rear of the sidepods, around the exhausts, and the tunnel that they have now 'filled in'.mikemethadone wrote:Anyone know if this is the same update as they were trying to cover on the grid at Bahrain