Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: gary.topple on 25/01/2010 19:30:03

Title: Why aren't all flying objects dimpled like golf balls?
Post by: gary.topple on 25/01/2010 19:30:03

gary.topple asked the Naked Scientists:
   
Hi Chris,

I don't play golf but I know that golf balls are dimpled to aid their flight through the air. I understand that dimpled golf balls can travel twice the distance of a plain one for an equal force applied.

There is obviously a surface effect with the dimpled golf ball that improves its aerodynamic efficiency. A golf ball does not have uniform rotation when struck by the club so this can be discounted as having an effect.

Logic then dictates that all objects that penetrate the air, and I mean aircraft, road vehicles trains etc. should have surfaces designed with golf ball like dimples to improve their aerodynamic efficiency thus reducing the amount of energy needed to propel them!

Is this the most brilliant ad hoc energy conservation idea ever and can I claim the Nobel Peace Prize for Brilliant Ideas.

Gary, in Felixstowe.

What do you think?

Title: Why aren't all flying objects dimpled like golf balls?
Post by: lightarrow on 25/01/2010 19:42:29

It is a quite brilliant idea for energy conservation, but I don't know how much brilliant for...money conservation because such a veichle would certainly be more expensive.
Anyway, consider me as a supporter for your idea!

Title: Why aren't all flying objects dimpled like golf balls?
Post by: syhprum on 25/01/2010 21:44:06

I am sure the makers of F1 cars who spend vast sums on aerodynamic research must have tried this and found is does not work.

Title: Why aren't all flying objects dimpled like golf balls?
Post by: yor_on on 27/01/2010 00:37:21

I thought dimples just made you happier?