How does fluid speed vary with radius in a vortex?

luckis11 · Aug 1, 2010

The fluid or air speed increases as we are approaching the centre of the vortex. But how much? What's the equation giving the speed f(R) of the fluid at each radius R?

Saraphim · Aug 2, 2010

http://en.wikipedia.org/wiki/Rankine_vortex

luckis11 · Aug 4, 2010

Thanks, this is what I was looking for:

uθ=Γ/2πr
http://en.wikipedia.org/wiki/Vortex#Free_.28irrotational.29_vortex

But...proof?

How does fluid speed vary with radius in a vortex?

Discussion

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