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Engineering
Aerospace Engineering
Ideal car rear roofline angle and shape for low drag?
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[QUOTE="jack action, post: 6819484, member: 240508"] From [URL='http://hpwizard.com/aerodynamics.html']my site[/URL], this is the effect of the rear roofline treatment in order of importance: [CENTER][ATTACH type="full" alt="rear-canopy.png"]316947[/ATTACH][/CENTER] Each design adds approximately 0.01 to the drag coefficient ##C_d##. For example, the hatchback with ##\theta## = 25°-35° (design #6) adds approx. 0.06 to ##C_d##. From the same page, you can find one of the sources for this ([URL='http://books.google.ca/books?id=Blp2D1DteTYC&printsec=frontcover&dq=theory+of+ground+vehicles&hl=fr&ei=lumPTM2TN4L58Ab_qbC3DQ&sa=X&oi=book_result&ct=result&resnum=1&ved=0CDMQ6AEwAA#v=onepage&q&f=false']Theory of ground vehicles[/URL], 2nd ed., J.Y. Wong, 1993, p. 179): [CENTER][ATTACH=full]316948[/ATTACH][/CENTER] [/QUOTE]
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Ideal car rear roofline angle and shape for low drag?
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