clacke@xela That's a very cool question and I got curious too. As it has been a year since the original article and the toroidal propeller has received some attention during the year, I was hoping someone would have looked into the reverse case, and they have!
A couple of proper papers out there, but I settled for this chatty fellow who just took a propeller, put it in some wind and wrote down the numbers.
It doesn't actually fare that well, and the comments speculate that this is because the toroidal propeller primarily addresses cavitation, which occurs when it's (1) in a liquid (2) propelling.
I would still be interested to know if this or another wind turbine design could reduce noise compared to current designs!
Robert Murray Smith #1846: "Further Testing Of The Toroidal Propeller For Wind Turbine Use"
farside.link/invidious/watch?v…
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