Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-05T05:47:22.206Z Has data issue: false hasContentIssue false

Some observations on the cross flow oscillations of a pair of interfering circular cylinders

Published online by Cambridge University Press:  04 July 2016

A. Bokaian
Affiliation:
Principia Mechanics and National Nuclear Corporation, Warrington
F. Geoola
Affiliation:
Department of Civil Engineering, University College, London

Extract

Cylindrical arrays subjected to external flow have been the subject of considerable study in recent years. Much of this study is concerned with a solitary cylinder or cylinder arrays involving many cylinders with the same diameters. Common structures however have cylinders with different diameters. For example, in a reactor, there are small diameter cylinders amongst large ones. In this situation, the dynamic behaviour of the cylinders are different from the cylinder arrays of equal diameters. Since the case of a pair of parallel circular cylinders in a cross-flow constitutes the simplest configuration, its study should be of importance in the understanding of more complicated situations. Various modes of oscillations associated with two interfering cylinders may be found in review papers by Zdravkovich. This note presents some laboratory observations of the response of a rigid twodimensional flexibly mounted smooth circular cylinder, with vibrations restricted to a plane normal to the incident flow, as induced by the vicinity of a rigid parallel circular cylinder of different diameter.

Type
Technical Note
Copyright
Copyright © Royal Aeronautical Society 1989 

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.)

Footnotes

*

Now with Nuclear Design Associates, Knutsford, Cheshire

References

1. Blevins, R. D. Flow-Induced Vibrations, Van Nostrand Reinhold. New York, 1977, 88118.Google Scholar
2. Chen, S. S. Flow-Induced Vibration of Circular Cylindrical Structures, Hemisphere Publishing Co, Washington D.C. 1987.Google Scholar
3. Zdravkovich, M. M. The effects of interference between circular cylinders in cross-flow. J Fluids Struct, 1987, 1, 239261.Google Scholar
4. Ohiomi, K. and Minakami, K. Dynamic forces acting on two circular cylinders with different diameters, In: Chen, S. S., . Simonis, J. C, and Shin, Y. S., (eds). ASME Symposium on Flow-Induced Vibration, Chicago, Illinois, 1986, 1520.Google Scholar
5. Lakshmana Gowda, B. H. and Prabhu, D. R. Interference effects on the flow-induced vibrations of a circular cylinder, J Sound Vibr, 1987, 112, (3), 487502.Google Scholar
6. Lakshmana Gowda, B. H. and Deshkulkarni, K. P. Interference effects on the flow-induced vibrations of a circular cylinder in side-bv-side and staggered arrangement. ./ Sound Vibr, 1988. 122, (3), 465478'.Google Scholar
7. Zdravkovich, M. M. Classification of flow-induced oscillations of two parallel circular cylinders in various arrangements, In: Paidoussis, M. P., Au-Yang, M. K. and Chen, S. S. (eds). ASME Symposium on Flow-Induced Vibration. New Orleans, Louisiana, Vol. 2, 1984, 118.Google Scholar
8. ZdravkovicH, M. M. Flow-induced oscillations of two interfering circular cylinders, J Sound Vibr, 1985, 101, (4), 511521.Google Scholar
9. Bokaian, A. and Geoola, F., Wake-induced galloping of two interfering circular cylinders, J Fluid Mech, 1984, 146. 383415.Google Scholar
10. Bokaian, A. and Geoola, F. Proximity-induced galloping of two interfering circular cylinders, J Fluid Mech, 1984, 146, 417449.Google Scholar
11. Bokaian, A. and Geoola, F. Hydrodynamic forces on a pair of cylinders. Offshore Technology Conference, Houston. 1985. Paper OTC 5007, 413-420.Google Scholar
12. Hiwada, M., Taguchi, T.. Mabuchi, I. and Kumada, M. Fluid flow and heat transfer around two circular cylinders of different diameters in cross-flow. Bull Jpn Soc Mech Eng, 1979. 22, (167), 715723.Google Scholar
13. Bokaian, A. and Geoola, F. Vortex-shedding from two interfering circular cylinders. Technical Note, J Eng Mech, ASCE, 1984, 110, (EM4). 623628.Google Scholar
14. Bokaian, A. Interference galloping of upstream member of a pair of circular cylinders, J Sound Vibr, 1987, 117, (3), 433446.Google Scholar
15. Bokaian, A. Galloping of a circular cylinder in the wake of another, 3rd Symposium on Fluid Transients in Fluid-Structure Interactions, ASME Winter Annual Meeting. Boston, Massachusetts, December 1987, also J Sound Vibr, 1988, 128, (1), 7186.Google Scholar
16. Shiraishi, N., Matsumoto, M. and Shirato, H. On aerodynamic instabilities of tandem structures. J Wind Eng Ind Aerodyn, 1986, 23. 437447.Google Scholar
17. Price, S. J.The origin and nature of the lift force on the leeward of two bluff bodies', Aeronaut Q, 1976, 26, 154168.Google Scholar
18. Bokaian, A. Geoola, F. Wake displacement as cause of lift force on cylinder pair. Technical Note, J Eng Mech, ASCE, 1985, 111, (1). 9299.Google Scholar