I'm need to determine the rate of spin decay for spherical objects as they're passing through air.(adsbygoogle = window.adsbygoogle || []).push({});

Basically, I'm trying to model the Magnus Effect and the output I'm getting doesn't reflect reality. I hope that I can obtain better results if I'm ab;e tp determine the rate at which a sphere's angular velocity decreases.

Does anybody know the equations necessary to calculate spin decay?

For the situation I know the mass / size of the object and the air density. My guess is that there is some sort of friction coeffecient that needs to be estimated or determined. Beyond that, I'm at a loss as to how to calculate spin decay. Any ideas or advice would be appreciated.

Thanks,

Nathan

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# Spin Decay Due to Fluid Friction for a Sphere

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