Comment by dilawar
14 hours ago
> and airfoils also benefit from micro-roughness for lowest friction.
I thought this was known to some extent that smooth surfaces are not always the best e.g. golf balls have dimples on them? No?
14 hours ago
> and airfoils also benefit from micro-roughness for lowest friction.
I thought this was known to some extent that smooth surfaces are not always the best e.g. golf balls have dimples on them? No?
dimples are used for stability and lift, not for friction reduction / low cx
Never mind. I didn't read the article (paywalled) and someone in the comments below answered this exact point.
https://archive.ph/YwAky