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Old 11-11-2013, 05:41 PM   #15 (permalink)
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Originally Posted by renault_megane_dci View Post
Nice project !

So which is the most streamlined approach for the does to cabin section ?
A nice fat radius or a tapered angle ?

If it happens to be the angle, you can even use standard doors on a dummy frame for a little more room and a nicer look and fully functionning doors.
The air prefers the acceleration/pressure profile of the radii compared to a simple angle.If you're forced into using an angle due to some project constraint,it will be better than a hard 90-degree corner.
If you purchase a couple ice cream cones and take them up to the laboratory elevation of the Eiffel Tower and drop them onto the American tourists below,ice cream first,then cone first,you'll find that the ice cream first type will fall at twice the velocity as the pointed ended one.
The blunt,convex-hemispherical nose is the benchmark for lowest drag in sub-transonic flow.
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