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Spiral Flow in Rivers, Shallow Seas, Dust Devils, and Models

William F. Tanner
Science
New Series, Vol. 139, No. 3549 (Jan. 4, 1963), pp. 41-42
Stable URL: http://www.jstor.org/stable/1710184
Page Count: 2
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Abstract

Spiral flow has been observed in meandering rivers, braided rivers, very shallow sea water, model experiments, and dust devils. Experimental work also produced standing spiral waves and spouts of water. Many observed spirals reversed direction from time to time. Geometry of the system, roughness, and turbulence are perhaps dominant in the control of spiral flow.

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