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Old 11-24-2015, 03:38 PM   #16 (permalink)
freebeard
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Quote:
Not trying to be a jerk, but that appears that it would promote vortices spinning the opposite way Maybe not if they were straight up...
This after aerohead posted:

Quote:
Vorticity is caused by pressure differentials at flow intersections.
The lowest pressures are on the roof.
If the rear slope is too steep,the flow will want to separate do to too fast a pressure rise.
At separation,everything downstream takes on the low pressure of the separation line.
Higher pressure in the side flow 'see's' the low pressure on the roof and wants to flow there.
Where the two streams comingle,they wrap up into swirling flow as the high pressure side air races into the low pressure top air.
Allow me to rebut myself. "You jerk, it's opposite to the Bertone BATs which employ a partial half-body shape."


https://en.wikipedia.org/wiki/Alfa_Romeo_BAT

Still, I think separating the top/side flows could be done, similar to a diverter with fences acting under the rear.
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