"Golfball effect" thinktank...

[RiderofBikes]

Originally Posted by MARTINSR

How about those cycling helmets that have the dimples, anyone have any first hand knowledge on how they work?

Brian

http://www.youtube.com/watch?v=LvVuuaqCC7A

Just a quick search came up with this, while i haven't read through everything, it gives an idea for others what dimples do, to the affect or result of how much drag reduction, size, number of dimples, depth, etc. would have on vehicles is still in the air much like it is for golf balls. The overall effect to me I think, you would only need a certain length of dimples placed just before the widest point of a vehicle to have any positive result. the only reason balls have them everywhere is because there axis is ever changing.

[zoltanbod]

Myth busters did an experiment with dimpling the surface of a car and discovered to their surprise an 11% reduction in fuel consumption.

[Frank Lee]

Don't get too excited about that

http://ecomodder.com/forum/showthrea...-vs-10658.html

[Xist]

Frank Lee, did you just link to this very thread?

zoltanbod, this thread has been discussing that episode.

[Frank Lee]

Ha- that was skilled! Thanks Xist. Fixed it.