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Kármán Vortex Streets in the Arctic

April 8th, 2009 Category: Clouds

Kármán vortex streets - April 5th, 2009

Kármán vortex streets - April 5th, 2009

Close-up

Close-up

A Kármán vortex street is a term used in fluid dynamics for a repeating pattern of swirling vortices caused by the unsteady separation of flow of a fluid over bluff bodies.

Here, a paisley-like line of such vortices cuts through many other rows of cloud streets, cumulus or cumulus-type clouds aligned parallel to the low-level wind.

Kármán vortex streets are named after the engineer and fluid dynamicist, Theodore von Kármán and is responsible for such phenomena as the “singing” of suspended telephone or power lines and the vibration of a car antenna at certain speeds.

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