Consider a disturbance in a fluid with laminar flow. The flow will become turbul

Question

Consider a disturbance in a fluid with laminar flow. The flow will become turbulent if :

frictional forces of the fluid are less important than the inertia of the fluid

If an object has a high Reynolds number, it means that:

the object will be a blockbuster hit

Will a marble or a baseball have a lower Reynolds number?

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One consequence of turbulence is mixing. Different layers of fluid flow cross over one another very easily, and get blended together. This is another kind of "transport", which lets atoms which might have started out all in one place get uniformly mixed around. Would you expect turbulent mixing to happen most easily in:

A. frictional forces of the fluid are more important than the inertia of the fluid B.

frictional forces of the fluid are less important than the inertia of the fluid

If an object has a high Reynolds number, it means that:

A. flow around the object will be turbulent B. flow around the object will be laminar C. flow around the object will approach zero D.

the object will be a blockbuster hit

Will a marble or a baseball have a lower Reynolds number?

A. marble B. baseball C.

you need to know more to answer this question

One consequence of turbulence is mixing. Different layers of fluid flow cross over one another very easily, and get blended together. This is another kind of "transport", which lets atoms which might have started out all in one place get uniformly mixed around. Would you expect turbulent mixing to happen most easily in:

A. water B. motor oil C. air D. honey

Explanation / Answer

A)

flow around the object will be laminar

B)

marble

C)

water

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