Magnus effect in flettner rotor

AI Thread Summary
The discussion centers on the potential of a Flettner rotor on a boat to create lift using the Magnus effect. Participants explore whether a vertical rotor can generate upward force and how to optimize its placement for efficiency. The conversation touches on the Kutta–Joukowski theorem and the implications of horizontal rotors for sailing. Concerns are raised about the rotor overpowering the vessel and causing it to submerge. Overall, the focus is on harnessing aerodynamic principles to enhance sailing performance.
Mr lee
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Mr lee said: ↑
hi -new but enjoyed years, wit and wisdom
Flettner rotor on a boat - ie. magnus effect

Can the vertical rotor create lift?

a curve balls 'laces' exaggerate and bend the magnus effect.
can you replicate this effect on a rotor?
--perhaps to enable another direction of force-- up
optimally I would like to gain lift -to the vertical -reduce downforce
I understand Kutta–Joukowski as it applies to a cylinder.

horizontal rotor?--unknown omidirectional sailing efficiency
ground effect used as a factor?
 
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oop
sorry,meant to say thank you
 
Mr lee said:
oop
sorry,meant to say thank you
my purpose for asking is ;where to put the rotor?
a conventional sail creates lift, so is mounted nearer the bow
 
Mr lee said:
my purpose for asking is ;where to put the rotor?
a conventional sail creates lift, so is mounted nearer the bow
I;m afraid, if the rotor becomes overpowered, it will drive the bow(s) under
 
Mr lee said:
Flettner rotor on a boat - ie. magnus effect

Can the vertical rotor create lift?
Yes, lift is the aerodynamic force component perpendicular to the free-stream flow.
 
awesome, just what was needed. thank you
 

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