Quote:
Originally Posted by aerohead
Eiffel and Hoerner both tested reversed streamline bodies ,and while the drag was higher,as half-bodies,and with wheels attached,I guestimate that you could see Cd 0.13 for a perfectly smooth wind tunnel model.
What we don't know,is if we can cheat on the windshield.If we can't,then the angles of the glass would make it impossible to see out of the car.
'Elliptical' bodies have the same drag as teardrop bodies,for the same fineness ratio,so I don't think you can hurt anything by extending the front.The pro's might say that you're creating undue additional skin friction.
Testing would tell.
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0.13 Cd?!?!?!? That is crazy talk!
I have thought about doing a second windshield similar to what basjoos did on his aerocivic. He said in another thread that while he didn't have exact numbers, it did help improve his coasting distance. With a car as light and as aerodynamic as his, I am guessing randomly that his Cd key have dropped close to 0.15.
What exactly do you mean by cheat the windshield?
I do plan on extending the front. I need to lower the stagnation point so air can flow over the Top, rather than under my car. I probably won't extend it to match the template... If I did, LOL