Quote:
Originally Posted by AeroMcAeroFace
It is a very interesting paper actually.
Downwards roof slope gives huge lift, 20 degree downwards slope is higher lift and higher drag than 15 degree downwards.
"little data is available on the effects of streamlined tails on non-axisymmetric bodies, whether representative of road vehicles or not" Presumably they need to "read between the lines" more despite reading the same books template enthusiasts have.
Tapering is good, but cannot be done arbitrarily is the main theme of the paper. Angles that work on the roof don't necessarily work on the sides, and vice versa.
If you are going to extend your car, don't expect a specific angle, shape or profile to be optimal.
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Perhaps, don't expect a
predetermined angle, shape or profile to be optimal?
There will be specific angles, shapes and profiles that are optimal, but they will be able to found only through testing on your particular car.
And yes, it is certainly a very interesting paper.