On the phenomenon of vortex street breakdown
1971 ◽
Vol 48
(3)
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pp. 507-527
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A von Kármán vortex street generated in the usual way was subjected to a deceleration, thereby changing the ratio of longitudinal to lateral spacing between the vortices. Distortion of the individual vortices followed which resulted in annihilation of concentrated vortex regions and creation of a stationary wake flow. This wake flow was itself dynamically unstable and developed into a new vortex street of a different frequency from the initial one. The breakdown of the initial vortex street is qualitatively explained by considering the convection of a concentrated vortex region due to the motion imposed by all the other vortices.
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2020 ◽
Vol 34
(4)
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pp. 1459-1465
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1993 ◽
Vol 5
(7)
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pp. 1846-1848
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