Magnus Effect Visualized - How It Works!

[@gabrielandresorregoramirez9739]

Very good your explanation about the Magnus effect and very didactic. Greetings from Chile

[@swift4856]

Hi. This is a wonderful explanation. I am struggling though with the difference between the reverse magnus effect that occurs on a smooth ball as opposed to the usual magnus effect on a rough ball as shown here. Are you able to model that effect as well? Thanks.

[@tobx7783]

Well explained! Thank you

[@LiftPizzas]

Thanks, I hope to add more videos like this. They'll be interspersed with the let's play videos. :)

[@domonkosludvig3314]

Thank you for making this video. I was fed up watching wrong explanations on youtube. This is exactly how i imagined it generating lift. I want to ask for a favour. You mentioned a "shield that slows down incoming air". I was wondering if that shield would still be there in a weaker form if the axis of rotation was paralel to the direction of movement. My guess is that it would make the ball a tiny bit more aerodynamic, but im not sure (cuz i think it would make the back of the ball have more drag). And as i realised a week ago science experiments are hard to do. :) If you are also curious, can you please do this in your simulator? I would be forever greatful.

[@LiftPizzas]

Do you mean where it would spin like a bullet? This program is only two dimensional so it wouldn't do it as-is. I think it would not have an effect on the forward axis, but it would produce a magnus effect with a crosswind, or up/down draft. IIRC that is known to happen with bullets, which spin along that axis.

[@domonkosludvig3314]

Im so blind! Well thanks anyway. I didnt think crosswinds would affect bullets, but that makes a lot of sense, but what i was trying, but unable to because of my bad english convey was how the front of the bullet (or a simple sphere that was spinning like one) i think would cut through the air when it was spinning really fast. I believe that the spin of the bullet would make the bullet more aerodynamic, i just dont know how to explain it. But i think it works the same way as in this video... Air molecule touches surface of the bullet, gets accelerated in a different direction into another air molecule that would have hit the bullet if the bullet wasnt spinning thus reducing air resistance. Unfortunatley, the surface of the bullet sipns the slowest where it would have the most effect on the surrunding air. Also the pathway of the air molecule can only be observed in 3d instead of 2d wich i think "reduces" the angles at wich the molecules get shot off from the surface. These two things makes me think the spin rate has to be so fast to make a measurable effect on the sphere (or bullet) that it basically doesnt exist. I got so excited for a second that i had a slight chance of proving that this little force exist that i didnt even realise the simulation is 2d. Sprite shadows fooled me. :) Thanks for responding (and for making this video!!!), have a nice weekend. Sorry if this lump of text above makes no sense. Explaining is not my forte. :)

[@tonykaze]

Wow this helped so much! Do one for a frisbee, if you dare!

[@thatseventiesguy]

So a knuckle ball’s behaviour is purely down to what air consistency / wind is present in its oncoming path?

[@LiftPizzas]

Yep. Pretty cool how bumpy the air is.

[@MarcCastellsBallesta]

Nice explanation! Which software did you use to create the whole thing? I know a bit of numerical methods but when it comes to visuals I'm totally lost.

[@LiftPizzas]

I wrote my own software in C#. :)

[@daviddsouza735]

Reckoning there are secondary affects that cause more lift

[@LiftPizzas]

What, specifically?

[@harysane8756]

hi