Vortex streets

[Alternating eddies of vortex street.]

[Alternating eddies of vortex street.]

[The Canary Islands as an eddy-creating obstacle.]

[The Canary Islands as an eddy-creating obstacle via GSFC/NASA.]

Vortex streets emerge when the right wind and cloud formation encounters the right kind of obstacle. Theodore von Kármán, a fluid dynamicist, observed and documented this phenomenon. Swirling rings sequence along a street-like corridor trail beyond the obstacle. Each ring stems from an air pockets are released in a series of vortices alternating parallel to wind direction. This condition can happen at any scale if the proportion of energies and obstacles is present.

Another set of vortices southeast of the Ilha da Madeira (Madeira Island) via GSFC/NASA December 1, 2002.]

[Another set of vortices southeast of the Ilha da Madeira (Madeira Island) via GSFC/NASA December 1, 2002.]

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InfraNet Lab

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