Air deflector vs. Full aero?
I've been thinking about the 69.7mpg civic hatch on here and how it's a little on the extreme side as far as aesthetics. I'm all for function over form, but there is a point at which I draw the line.
I'm wondering if it's possible to create a tear drop path for the air via carefully placed deflectors as opposed to running material over the entire path. Does this make any sense? Matt |
makes sense to me. while i like how far some people will go in altering the shape of their car , for most people it's not an option (if only for legal or practical reasons).there's a certain point where "improving you car" turn to "inventing a new one".
i find the concept of "deflectors" more intriguing. the problem of course is that the "virtual" shape of your car, the path the air will travel around it, if far more dificult to predict and test than how it would on a physical shape. also the effect of small single air deflectors would be hard to test, but when it all adds up i think these things can make a significant difference. i intent to try some front wheel fairings when i can finally get them installed and perhaps some more turbulators |
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The first thing that comes to mind is: https://whyfiles.org/shorties/190truc...s/truckend.jpg But notice that it's not really a deflector (it doesn't protrude into flow). It's more of channel of where flow should go. Not exactly viable for the typical sedan shape - but that's not to say it won't help (testing will tell you that). |
Well that is apparently what Subaru was thinking about with the latest WRX STi. Having owned an 04 STi, I'll say that keeping the rear window clear at speed probably wasn't the issue. There is however seperation of laminar flow over the rear window at speed without the deflector, but I don't know if that cures it.
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https://fweem.pytalhost.net//news/ges...k/IMG_6291.JPG Sooo small and fast. |
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