PPRuNe Forums - View Single Post - Dimpled Skin, Lower Drag??
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Old 4th Jan 2011, 19:15
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doppleganger
 
Join Date: Dec 2007
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I haven't heard of that as being another reason for dimples on a golf ball but the theory is good, so it is a reasonable idea.

Any object which is spinning as it sails through the air will experience a disymmetry of lift - sideways (eg the swerve of a cricket ball) or vertical, depending on the relative orientation and direction of spin. Anything which thickens the boundary layer (eg dimples) will aid the process.
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