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Visual observations of the flow past a sphere at Reynolds numbers between 104 and 106

Published online by Cambridge University Press:  12 April 2006

S. Taneda
S. Taneda
Affiliation:
Research Institute for Applied Mechanics, Kyushu University, Fukuoka 812, Japan
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Abstract

The wake configuration of a sphere has been determined by means of the surface oil-flow method, the smoke method and the tuft-grid method in a wind tunnel at Reynolds numbers ranging from 104 to 106. It was found that the wake performs a progressive wave motion at Reynolds numbers between 104 and 3·8 × 105, and that it forms a pair of stream wise line vortices at Reynolds numbers between 3·8 × 105 and 106.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 85 , Issue 1 , 7 March 1978 , pp. 187 - 192
Copyright
© 1978 Cambridge University Press

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