Quote:
Originally Posted by j-c-c
No sanctioning body.
A 72 Dart.
I would make and/or cut gaping holes, if I had high confidence it would achieve desired result.
My biggest objection is cosmetic with gaping holes, same for scoops. It a personal thing. With this topic, my air intake location was intended to be rather out view, as the Nascar engine air inlet is at the front windshield base, mine would be at base of the rear window.
I have spoken and visited A2, but because of costs already mentioned, it will be more for verification testing to see what I finally work out, to see if it works or creates a problem, to a large degree, and limited by time/money.
I'm thinking because of what I am exploring here as a solution, because it is towards the rear of the car, it will have less other unintended negative consequences vs say if it was towards front of the car.
What I am not hearing is, and I still seeking, can you take a somewhat low pressure likely turbulent air pocket, and "suck it" enough to change the direction of nearby streamlines closer to where the air pocket was?
I get with a big enough bank roll I can find a definitive answer, but my starting point, first has anyone done it, and anything that educates me how it was done, how effective the result was, and how difficult, will be very helpful before I start.
Seems most aero centers around using/controlling high pressure/high flow areas, and I am focusing on reducing a low pressure area indirectly.
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Introducing a local suction will result in a local equilibrium,as,as soon as the new local low pressure is introduced,the nearest air of any higher pressure will immediately displace towards it,from any direction,to cancel out the differential.
On a wing,you could use either a blown or suctioned slot to enhance boundary layer conditions.Freebeard may want to tell you about Dyson's 'Air Wrap' Coanda-effect hair care product, which recently hit the advertising airwaves.
Typically,added horsepower is required.Georgia Tech University has been trying to use powered slots to cut drag on 18-wheelers for a decade or so.Last I heard,the power required for the slot exceeded the benefit derived from the slot.