Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-18T18:45:00.815Z Has data issue: false hasContentIssue false
  • English
  • Français

Vortex shedding from slender cones at low Reynolds numbers

Published online by Cambridge University Press:  29 March 2006

M. Gaster
M. Gaster
Affiliation:
National Physical Laboratory, Teddington, Middlesex
Get access Rights & Permissions [Opens in a new window]

Abstract

Water-tunnel experiments on two cones of taper ratio 36:1 and 18:1 have shown that the frequency of vortex shedding is controlled by the local diameter and has a value which is slightly lower than that on a parallel cylinder of the same size. The shedding process is modulated by a low-frequency oscillation which has a frequency dependent only on U2/v and is independent of any physical dimension of the model. A mathematical analogue of the wake, which helps to explain these features of the flow, has been constructed. The pattern of vortices in the wake of a cone suggested by this model is in reasonable agreement with the photographic evidence.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 38 , Issue 3 , 18 September 1969 , pp. 565 - 576
Copyright
© 1969 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Berger, E. 1964 Z. Flugwiss, 12, 41.
Kovasznay, L. S. G. 1949 Proc. Roy. Soc. A, 198, 174.
Morkovin, M. V. 1964 Symposium of Fully Separated Flows. The American Society of Mechanical Engineers.
Roshko, A. 1954 N.A.C.A. Rep. no. 1191.
Stoker, J. J. 1950 Non-linear Vibrations in Mechanical and Electrical Systems. London: Interscience.
Tritton, D. J. 1959 J. Fluid Mech. 6, 547.