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The three-dimensional structure of the wake of a circular cylinder

Published online by Cambridge University Press:  28 March 2006

J. H. Gerrard
J. H. Gerrard
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
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Abstract

A critical scrutiny of the nature of the three-dimensional characteristics of the vortex wake of a circular cylinder serves to suggest lines for further investigation and furnishes some ideas on the nature of the growth and development of these non-uniformities. It is suggested that the basic occurrence in the growth of three-dimensionality is the continuation of vortex lines, oriented more or less parallel to the body, into the direction of the free stream. The causes of this vary, as do the details of the development with the particular situation considered.

Experiments were performed in a wind tunnel at Reynolds numbers based on cylinder diameter of 85, 235 and 2 × 104, at which stable, transitional and turbulent vortices were investigated.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 25 , Issue 1 , May 1966 , pp. 143 - 164
Copyright
© 1966 Cambridge University Press

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