Does Bernoulli predict a top~spinning ball will float or sink? So what about Magnus?

[rwjefferson]

look up inviscid.vii

Does the top side of a rolling ball attack the relative headwind faster or slower than the bottom?

What does Bernoulli predict under such given conditions?

So what about the Magnus effect.

peace

ron

[Enthalpy]

Hi Ron, nice to see you here!

 

A ball with top spin drags air to be slower at the top, the pressure increases there, and the ball is pushed down.

 

Notice that Bernouilli's law should not have been applied here... Because the variation of pressure results from friction, at least in part.

[rwjefferson]

does.ii

newton.101

If a relatively efficient (insignificant friction) inertial (centrifugal) pump spins air mass around and under and upwards; is pump mass forced downwards in verse the air mass accelerated up?

How is this different from a baseball?

bernoulli.101

What if the headwind is relatively thin i.e. inviscid?

What if the boundary is relatively shiny i.e. inviscid too?

What if you top spin a bowling ball in 0g?

What's heat got to do with it?

ron