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Is this some sort of aerodynamic design?

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Old   June 2, 2021, 02:10
Question Is this some sort of aerodynamic design?
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Hello guys,

I have seen a lot of vehicles have this 'sharp edge' at both side of the rear bumper. One of my friend said it helps to reduce vehicle drag coefficient. When I ask deeper he just says 'Oh it helps the fluid to eject quickly from the vehicle.' which does not really answers my question..

Can anyone help please. What is the name of the structure and what does it really do? Or is it just some sort of good looking design or something.

Many thanks!

P.S. The picture of the structure is attatched below.
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File Type: jpeg R5c4f0a41b76f9d2c1cc41dbad405c798.jpeg (183.9 KB, 9 views)
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flow separation, fluid dynamics, vehicle aerodynamics

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