2007 Honda Civic EX - A-pillar fins?
I've heard that some of the air that flows over the windshield is also "squished" towards the edges of the A-pillars. The "squished" air is then met by the air that is travelling along the side of the car, and then creates a vortex along the sides of the roof. The image I have in mind is an airplane taking off from a dusty runway and generating a vortex at the ends of its wings. (Picture a long curl/corkscrew being dragged through the air from the upper right and left of the windshield.)
Still with me? :thumbup: OK, for those who are here's my thought: What if I added relatively small fins that run from the bottom of the A-pillar all the way to where the roof "begins"? Shouldn't this improve the way the air would flow over the car, reduce turbulence, thus improving mileage? I'd also imagine that this would reduce wind noise, but that is speculation. Any thoughts? |
I think that based on the NASA van aerodynamics reasearch the leading face of a vehicle, even a completely boxy one like a van, is aerodynamically OK as long as it has 4" or so rounded edges.
Most cars A-pillars should be rounded enough to prevent any vortex-formation. |
I think an airplane's vorteces are a bit more extreme than a car. They're generated by the relatively high pressure under the wing leaking off the wing tips and meeting the low pressure on the top of the wing.
but if you want to try it i'd be very interested to see if you get good results! :thumbup: I think the same-ish principles would still apply, just in a less extreme manner. |
Thanks for the feedback. I noticed that sometimes in modern cars the windshield is recessed, as if to create an aerodynamic decive. But it could be just to direct the water that is wiped over the car, instead of letting it "dribble" across the side windows (as it did on our old car - the 1993 Oldsmobile Cutlass Ciera).
I noticed that adding more to those gi-normous a-pillars may obstruct visibility even more, but maybe I'll have to use some see-through material. I'll tinker and will post the results. Thanks again! :D |
Hi All,
The A pillar fins were shown in the one of the next Gen Prius concepts. The latest scuttlebut is that will be the Lexus version of the Prius. |
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