Vortex



[|vortex] - a region in a fluid in which the flow is rotating around an axis line, which may be straight or curved.

The plural of vortex is either vortices or vortexes.

Vortices form in stirred fluids, and may be observed in phenomena such as smoke rings, whirlpools in the wake of boat, or the winds surrounding a tornado or dust devil.


 * Irrotational vortex
 * Rotational vortex


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> fluid mechanics, axix, flow, curve, curl
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Challenges for you to work on...
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 * [|Smoke Ring]
 * [|Vortex Cannon]
 * [|Tornado Tube]
 * [|Flame Tornado]


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 * Learn more...**
 * [|Fluid Mechanics demonstrations]

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