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On cell formation in vortex streets

Published online by Cambridge University Press:  26 April 2006

Bernd R. Noack ,
Frank Ohle  and
Helmut Eckelmann
Bernd R. Noack
Affiliation:
Max-Planck-Institut für Strömungsforschung, Bunsenstr. 10, D-3400 Göttingen, Germany
Frank Ohle
Affiliation:
Max-Planck-Institut für Strömungsforschung, Bunsenstr. 10, D-3400 Göttingen, Germany Present address: Beckman Institute, Center of Complex System Research, 405 North Mathews Avenue, Urbana, IL 61801, USA.
Helmut Eckelmann
Affiliation:
Institut für Angewandte Mechanik und Strömungsphysik der Universität, Bunsenstr. 10, D-3400 Göttingen, Germany
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Abstract

A simple, phenomenological model is proposed for the formation of spanwise cells behind slender bodies of revolution in crosswise, uniform or non-uniform oncoming flow. The model yields estimates for the position of the cells, their frequencies, their amplitudes of oscillation along the span, and the local shedding angle. The qualitative features of the solutions of this theory agree well with experiments. A quantitative comparison with experiments for a slender cone is presented.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 227 , June 1991 , pp. 293 - 308
Copyright
© 1991 Cambridge University Press

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