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Smoke observations of wakes of tandem cylinders at low Reynolds numbers

Published online by Cambridge University Press:  04 July 2016

M. M. Zdravkovich
M. M. Zdravkovich*
Affiliation:
formerly Engineering Department, University of Cambridge, now in the Department of Mechanical Engineering, University of Salford
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Extract

The appearance of the Kármán vortex street in the wake of bluff bodies has been well-known for sixty years. But the simple question of whether it appears also in the wakes of two cylinders in tandem at the same speed range, seems to have been unanswered as yet. The main reason for this is presumably the lack of practical interest. The only exception was in the early years of aviation in the era of biplanes. The use of streamlined or cylindrical struts was common and stimulated the investigations of Panell et al 1915, Wong & Yu 1917, Frazer & Simmons 1917, Biermann & Herrnstein 1933, and others.

Type
Technical notes
Information
The Aeronautical Journal , Volume 76 , Issue 734 , February 1972 , pp. 108 - 114
Copyright
Copyright © Royal Aeronautical Society 1972 

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References

1. Biermann, D. and Herrnstein, W. H. The interaction between struts in various combinations, NACA TR 468, 1933.Google Scholar
2. Frazer, R. A. and Simmons, L. F. G. Tests on struts suitable for the fairing of duplicate cables, ARC R&M 433, 10, Vol 1, 1917.Google Scholar
3. Panell, J. R., Griffiths, E. A. and Coales, J. D. Experiments on the interference between pairs of airplane wires of circular and lenticular cross-section. ARC R&M 206, 7, 1915.Google Scholar
4. Preston, J. H. and Sweeting, N. E. An improved smoke generator for use at high Reynolds numbers. ARC R&M 2023, 1943.Google Scholar
5. Roshko, A. On development of turbulent wakes from vortex streets, NACA TR 1191, 1954.Google Scholar
6. Taneda, S. The stability of two-dimensional laminar wakes at low Reynolds numbers. J. Phys Soc Japan, Vol 18, No 22, 288–296, 1963.Google Scholar
7. Thomas, D. G. and Kraus, K. A. Interaction of vortex streets. J Appl Phys, Vol 35, 3458-9, 1964.Google Scholar
8. Wiixe, R. Beiträge zur Phanomenologie der Freistrahlen, Dritte Otto Lihenthal Vorlesung, Z Flugwiss, Vol 11, 222, 1962.Google Scholar
9. Wong, T. and Yu, T. Air resistance of cylinder combinations. MIT thesis, 1917.Google Scholar
10. Zdravkovich, M. M. Note on transition to turbulence in vortex streets wakes. The Aeronautical Journal of the Royal Aeronautical Society, Vol 71, pp 886-70, 1967.Google Scholar
11. Zdravkovich, M. M. Smoke observations of the wake of a group of three cylinders at low Reynolds number. J Fluid Mech, Vol 32, 339-51, 1968.Google Scholar
12. Zdravkovich, M. M. Smoke observations of the formation of a Kármán vortex street. J Fluid Mech, Vol 37, 491-6, 1969.Google Scholar