RCB 77 Aerodynamics
Discussion
Louvres underneath look a bit unscientific to me. (Like the look of the thing though)
I'm guessing that under the front of the car will always be a high pressure zone even with a big lip spoiler. So I doubt if the louvres will do anything other than spoil the airflow.
At the rear, where there is a large diffussion space, surely the louvres will spoil the airflow, and bleed air into the low pressure zone, defeating its purpose?
Well that's my PH opinion, now lets hear from someone who knows what they're talking about!
I'm guessing that under the front of the car will always be a high pressure zone even with a big lip spoiler. So I doubt if the louvres will do anything other than spoil the airflow.
At the rear, where there is a large diffussion space, surely the louvres will spoil the airflow, and bleed air into the low pressure zone, defeating its purpose?
Well that's my PH opinion, now lets hear from someone who knows what they're talking about!
I like it, especially with the smaller headlamps. Maybe they should do a 'super modern' version that is less like a 7 and more like a Toniq R, that would suit the look of the aerodynamics even more. I have no idea whether the aero stuff would work, but the louvres underneath do seem to go against the flat floor aero work they have done.
Paul Drawmer said:
AND.... more guessing,
how can any of those front lip spoilers work, surely a splitter has to split the airflow to prevent it going under the car? Those all look as if the air will just flow either side across the top of the lip, and then pour neatly underneath at the trailing edge.
Just more guesswork, but I think you may be wrong on that one - the standard seven-esque car actually drives air under the car with the shape of the chin. Although as you say it's not going to stop air bleeding in after the trailing edge, it should in theory prevent it being forced under.how can any of those front lip spoilers work, surely a splitter has to split the airflow to prevent it going under the car? Those all look as if the air will just flow either side across the top of the lip, and then pour neatly underneath at the trailing edge.
Would have been better to taper the trailing edges back along the side panels though!
dugt said:
a bit off topic, what are they jacking on on the front? it looks like theres nothing there and its not touching the body of the car
doug
Hi Doug, check their website for info, here is the link:doug
http://www.rcb7.de/galerie-1/index.php
From my (basic) understanding of aerodynamics, the diffuser looks like it will be innefective for three reasons:
1) The point of change from the flat floor to the diffuser is both too sharp and too close to the rear of the car.
2) The angle of the diffuser is too steep (looks about 45 degrees from the pics.
3) As already said, the louvres will feed air into the low pressure area - although what air is coming out at that point?
Personally, I think the idea is good but the execution is poor. The louvres are obviously there to extract hot air, but that is a very poor solution to an obvious problem. For a start, heat rises, so why try to take it out the bottom? I have seen better engine bay air extracts on other seven-esque cars, situated just above the wasteline behind the front wheels. The rear louvres I assume try to dispand hot air from around the diff - well that won't actually cool the diff, so if it's a problem, then some sort of diff cooling system would be a better bet.
All IMHO ofcourse.
1) The point of change from the flat floor to the diffuser is both too sharp and too close to the rear of the car.
2) The angle of the diffuser is too steep (looks about 45 degrees from the pics.
3) As already said, the louvres will feed air into the low pressure area - although what air is coming out at that point?
Personally, I think the idea is good but the execution is poor. The louvres are obviously there to extract hot air, but that is a very poor solution to an obvious problem. For a start, heat rises, so why try to take it out the bottom? I have seen better engine bay air extracts on other seven-esque cars, situated just above the wasteline behind the front wheels. The rear louvres I assume try to dispand hot air from around the diff - well that won't actually cool the diff, so if it's a problem, then some sort of diff cooling system would be a better bet.
All IMHO ofcourse.
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