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Interference between two circular cylinders forming a cross

Published online by Cambridge University Press:  20 April 2006

M. M. Zdravkovich
M. M. Zdravkovich
Affiliation:
University of Salford, U.K.
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Abstract

The interference of flow around two circular cylinders forming a cross can be considered as an element of a gauze screen or an offshore structure. The most important feature of the interference was found to be a significant increase of local drag coefficient due to the symmetric formation of secondary flow patterns. The pressure distribution measured around both cylinders at various spanwise stations was distinctly different for the two cylinders in the region of interference. A strong secondary flow was found behind the upstream cylinder and in front of the downstream cylinder. The secondary flow distorted and displaced the separation streamlines on the upstream and downstream cylinders. This has been verified by oil-film flow visualization.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 128 , March 1983 , pp. 231 - 246
Copyright
© 1983 Cambridge University Press

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References

Donoso, J. A., Hillier, R. & Yeung, C. K. 1982 The effect of strong three-dimensional disturbance on vortex shedding. In Proc. 5th Colloquium on Industrial Aerodynamics (ed. C. Kramer & H. Gerhardt), vol. 2, pp. 109–120.
Etzold, F. & Fiedler, H. 1976 The nearwake structure of a cantilevered cylinder in a cross flow Z. Flugwiss. 24, 71–82.Google Scholar
Gould, R. E. F., Raymer, W. G. & Ponsford, P. J. 1968 Wind tunnel tests on chimneys of circular cross section at high Reynolds numbers. In Proc. Wind Effects of Bldgs, Loughborough Univ. (ed. D. J. Johns, C. Scruton & A. M. Balantyne), paper 10.
Ishihara, T., Kobayashi, T. & Iwanaga, M. 1982 Visualization of laminar separation by oil film method. In Proc. Flow Visualization Int. Symp. (ed. W. Merzkirch), pp. 304–308. Hemisphere.
Laws, E. M. & Livesey, J. L. 1978 Flow through screens Ann. Rev. Fluid Mech. 10, 247–266.Google Scholar
Naumann, A., Morsbach, M. & Kramer, C. 1966 The conditions of separation and vortex formation past cylinders AGARD Conf. Papers 4, 539–574.Google Scholar
Okamoto, T. & Yagita, M. 1973 The experimental investigation on the flow past a circular cylinder of finite length placed normal to the plane surface in a uniform stream Bull. Japan Soc. Mech. Engrs 16, 805–814.Google Scholar
Osaka, H., Nakamura, I., Yamada, H., Kuwata, Y. & Kageyama, Y. 1983a The structure of turbulent wake behind a cruciform circular cylinder. 1st report: the mean velocity field. Bull. Japan Soc. Mech. Engrs 26 (to appear).Google Scholar
Osaka, H., Nakamura, I., Yamada, H., Kuwata, Y. & Kageyama, Y. 1983b The structure of turbulent wake behind a cruciform circular cylinder. 2nd report: the streamwise development of turbulent flow fields. Bull. Japan Soc. Mech. Engrs 26 (to appear).Google Scholar
Osaka, H., Yamada, H. & Nakamura, I. 1983c Three-dimensional structure of the turbulent wake behind an intersecting circular cylinder. In IUTAM Symp. on Three-Dimensional Turbulent Boundary Layers, Berlin, 29–31 March 1982. Springer.
Squire, L. C. 1962 The motion of a thin oil sheet under the boundary layer on a body. In AGARD 70, Flow Visualisation Using Indicators.
Werle, H. 1974 Le tunnel hydrodynamique au service de la recherche aérospatiale. ONERA Publ. no. 156.Google Scholar
Zdravkovich, M. M. 1977 Review of flow interference between two circular cylinders in various arrangements. Trans. A.S.M.E. I: J. Fluids Engng 99, 618–633.Google Scholar