4 ms·
you're probably thinking about a propeller - as in the type on an airplane or boat that puts energy into a fluid. I'm not an expert but I'm pretty sure there i
by sathackr 10y ago
you're probably thinking about a propeller - as in the type on an airplane or boat that puts energy into a fluid.
I'm not an expert but I'm pretty sure there is a big difference from a device trying to pull energy out of the fluid.
A quick google didn't lead me to an authoritative source, but I know I have read many times that a one-bladed propeller is the most efficient.
- e12e 10y agoInteresting. Isn't a fish fin (as in the fins on the side etc) essentially a one-bladed propeller?
- cellularmitosis 10y agoOh, I had thought an infinite number of infinitely thin blades got you the closest to Betz's limit?
- tasnent 10y agoWouldn't that just be a disk?