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Vortex shedding from circular cylinders at low Reynolds numbers

Published online by Cambridge University Press:  29 March 2006

M. Gaster
Affiliation:
National Physical Laboratory

Abstract

Experiments on slightly tapered models of circular cross-section have shown that the vortex wake structure exists in a number of discrete cells having different shedding frequencies. Within each cell shedding is regular and periodic, the frequency being somewhat lower than that from a parallel cylinder of the same diameter. A similar type of wake behaviour has also been observed on a parallel model in a non-uniform mean flow. These results suggest that the discontinuities in the shedding law observed by Tritton could arise through non-uniformities in the flow.

Type
Research Article
Copyright
© 1971 Cambridge University Press

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References

Berger, E. 1964 Z. Flugwiss. 12, 41.
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Kovasznay, L. S. G. 1949 Proc. Roy. Soc. A, 198, 174.
Roshko, A. 1954 N.A.C.A. Rep. no. 1191.
Tritton, D. J. 1959 J. Fluid Mech. 6, 547.
Tritton, D. J. 1970 J. Fluid Mech. 45, 203.