If having a rough surface postpones the flow separation (like dimples on the golf ball), why don't we design airplane wings and bodies with rough surfaces? - Quora
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Why don't F1 cars use irregular or unsmooth surfaces on their wings (or other down force generating parts) like a golf ball to reduce wake? Isn't there a net benefit to reducing
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Boundary layer drag reduction research hypotheses derived from bio-inspired surface and recent advanced applications - ScienceDirect
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