Cosworth Predicts 'extreme diffusers'

[l.etranger]

As quoted by Racer.com, Cosworth's Mark Gallagher predicts 'quite extreme forms of' blown diffusers likely to appear soon in F1.
http://www.racer.com/cosworth-predicts- ... ACER_DAILY

Under the 2011 regs, the teams haven't found a way (that's been publically outed) to feed airflow from under the car to a second-deck diffuser, and the regulated 125mm floor height seems to be governing the diffuser volume. The regulation that closed their upper-deck feeds is 3.12.9:

In an area lying 450mm or less from the car centre line, and from 450mm forward of the rear face of the cockpit entry template to 350mm rearward of the rear wheel centre line, any intersection of any bodywork visible from beneath the car with a lateral or longitudinal vertical plane should form one continuous line
which is visible from beneath the car.

If Cosworth is correct, what will the 'extreme form' of diffuser look like? Will we see a return of the second deck, with exhaust momentum helping to coax the flow into some kind of (regulations-skirting) inlet we haven't seen yet? Or is there something else that will make the upcomming interpretations 'extreme?' Or is Cosworth blowing smoke in an attempt to speed the proposed rules change regarding off-throttle mapping?

[dansus]

Maybe use that small gap on the edges of the diffuser and create an upper volume expander around it, which is fed by the exhaust to suck the air out of it rather then pushing the exhaust gasses through it.

[hardingfv32]

He is an engine man, I doubt he nows any more than us. It is not like he is going to learn anything from the teams he works with.

The teams have been working on this subject since the 2011 rules were set, say 10-12 months ago. Do you really think there is much left in this technology?

Brian

[marcush.]

I can imagine a second deck when you go to extremes with interpretation of the rules.What you need to do is to have a hole in the top deck of the ddd to comply with the rule of no bodywork visible from above .The question is just how much efficiency this rulecompliance hole would cost or if it could be effectively sealed by clever design or even enhance flows.

[Pierce89]

As quoted by Racer.com, Cosworth's Mark Gallagher predicts 'quite extreme forms of' blown diffusers likely to appear soon in F1.
http://www.racer.com/cosworth-predicts- ... ACER_DAILY

Under the 2011 regs, the teams haven't found a way (that's been publically outed) to feed airflow from under the car to a second-deck diffuser, and the regulated 125mm floor height seems to be governing the diffuser volume. The regulation that closed their upper-deck feeds is 3.12.9:

In an area lying 450mm or less from the car centre line, and from 450mm forward of the rear face of the cockpit entry template to 350mm rearward of the rear wheel centre line, any intersection of any bodywork visible from beneath the car with a lateral or longitudinal vertical plane should form one continuous line
which is visible from beneath the car.

If Cosworth is correct, what will the 'extreme form' of diffuser look like? Will we see a return of the second deck, with exhaust momentum helping to coax the flow into some kind of (regulations-skirting) inlet we haven't seen yet? Or is there something else that will make the upcomming interpretations 'extreme?' Or is Cosworth blowing smoke in an attempt to speed the proposed rules change regarding off-throttle mapping?

I think it's your last suggestion.