Why don't wings have dimples 2
Delve into the aerodynamics of blunt bodies, as automotive
aerodynamics is called.
Actually, dimples on the wings might actually help in certain
conditions.
So would tapering the thickness of the skins(!).
But both of these are impractical from a manufacturing stand point.
Might check into "vortex generators" for more insight into current
approaches as to getting the boundary layer energized.
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