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On the phenomenon of vortex street breakdown

Published online by Cambridge University Press:  29 March 2006

William W. Durgin  and
Sture K. F. Karlsson
William W. Durgin
Affiliation:
Division of Engineering, Brown University, Providence, R.I. 02912 Present address: Department of Engineering Science and Mechanics, University of Florida, Gainesville, Florida 32601.
Sture K. F. Karlsson
Affiliation:
Division of Engineering, Brown University, Providence, R.I. 02912
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Abstract

A von Kármán vortex street generated in the usual way was subjected to a deceleration, thereby changing the ratio of longitudinal to lateral spacing between the vortices. Distortion of the individual vortices followed which resulted in annihilation of concentrated vortex regions and creation of a stationary wake flow. This wake flow was itself dynamically unstable and developed into a new vortex street of a different frequency from the initial one. The breakdown of the initial vortex street is qualitatively explained by considering the convection of a concentrated vortex region due to the motion imposed by all the other vortices.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 48 , Issue 3 , 16 August 1971 , pp. 507 - 527
Copyright
© 1971 Cambridge University Press

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References

Durgin, W. W. 1970 An experimental and analytical investigation of the mechanism causing the phenomenon of vortex street breakdown. Ph.D. Thesis, Brown University.
Hooker, S. G. 1936 On the action of viscosity in increasing the spacing ratio of a vortex street. Proc. Roy. Soc. A 154, 67–89.Google Scholar
KÁrmÁn, Th. Von & Rubach, H. 1912 Über den Mechanismus des Flussigkeits und Luftwider standes. Phys. Z. 13, Heft 2, 49–59.Google Scholar
Kovasznay, L. 1949 Hot-wire investigation of the wake behind cylinders at low Reynolds numbers. Proc. Roy. Soc A 198, 175–190.Google Scholar
Lamb, H. 1945 Hydrodynamics, 6th edn. New York: Dover.
Payne, R. 1958 Calculations of unsteady viscous flow past a circular cylinder J. Fluid Mech. 4, 81–86.Google Scholar
Roshko, A. 1953 On the development of turbulent wakes from vortex streets. NACA TN 2913.Google Scholar
Sadeh, W., Sutera, S. P. & Maeder, P. F. 1968 An investigation of vorticity amplification in stagnation flow. Brown Univ., Div. of Engrg., Tech. Report WT-50.Google Scholar
Sato, H. & Kuriki, K. 1961 The mechanism of transition in the wake of a thin flat plate placed parallel to a uniform flow J. Fluid Mech. 11, 321–352.Google Scholar
Schaefer, J. W. & Eskinazi, S. 1959 An analysis of the vortex street generated in a viscous fluid J. Fluid Mech. 6, 241–260.Google Scholar
Taneda, S. 1959 Downstream development of the wakes behind cylinders J. Phys. Soc. Japan, 14, 843–848.Google Scholar
Taneda, S. 1965 Experimental investigation of vortes streets J. Phys. Soc. Japan, 20, 1714–1721.Google Scholar
Wood, R. T. 1969 An experimental and analytical investigation of the mechanism underlying the influence of free-stream turbulence on the stagnation line heat transfer from cylinders in cross flow. Ph.D. Thesis, Brown University.
Zdravkovich, M. 1968 Smoke observations of the wake of a group of three cylinders at low Reynolds number J. Fluid Mech. 32, 339–351.Google Scholar