Quote:
Originally Posted by Cd
How does dimpling help on a golf ball if the ball is spinning constantly ?
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Same as before, just on one side (the low pressure side)
Other things to note.....
The seam on a baseball, create a similar effect as golf ball dimples. There's a reason why baseballs are changed frequently and attempts to rough them up is banned
The slightly raised seam on a cricket ball - it too
Tennis balls... they're fuzzy... Another aero changing feature
The texture of a football
Panels on a soccer ball
Jai Alai ball - arguably the fastet/most lethal ball...
etc. etc. etc.
That's interesting and all.... But only applicable for similar Reynolds numbers
Quote:
Dimpled underpans would have another non-aero reason for being dimpled...
NVH reduction - Noise, Vibration, and Harshness.
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Look at where dimples are being applied for aero - super tight curvature objects that just happen to spin pretty damn fast. A flat, or even mostly flat panel is not going to be directly applicable.
Now, some cattle chew....
Zipp offers dimpled wheel sets for cyclists... again, fast spinning, tight radii, small length..... And yes, their claim is aero - not strength