Quote:
Originally Posted by TimG
Speaking of the hit-with-large-hailstones look, this is a bicycling time trialing helmet recently introduced by Garneau:
Louis Garneau Superleggera Aero Helmet
Did they do the dimples correctly? It was my impression that their method of improvement was to keep laminar flow longer (greater angle) on the back of the object... so the ones on the front would mean more drag. It should have these just behind the chord around the sides as well as the top, no? |
Any kind of turbulator will incur a skin friction penalty but allow a form drag reduction such that overall profile drag is reduced.
Proper placement is absolutely critical to their performance.A good place for windtunnels.