Vortex-excited vibration of a circular cylinder in planar oscillating flow


Hayashi, K., Higaki, F., Shigemura, T. and Chaplin, J.R. (2003) Vortex-excited vibration of a circular cylinder in planar oscillating flow. International Journal of Offshore and Polar Engineering, 13, (4), 266-273.

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Description/Abstract

Laboratory investigation has been made for a comprehensive study of the dynamic transverse response of a circular cylinder in planar oscillating flow. The test cylinder, 0.03 m in diameter and 0.48 m in length, is mounted horizontally at the mid-point of the water depth and is supported flexibly by a spring in the transverse direction. The variations of the transverse response of the test cylinder with frequency ratio fd/fnw (fd : frequency of oscillatory incident flow; fnw: natural frequency of the test cylinder in still water) and Keulegan-Carpenter number, KC, as the function of typical combined
mass ratio-damping parameter, Scruton number Ksp, are obtained in the range of 4 < KC < 20 and 0 75 < Ksp < 14 5. The appearance of 2 types of peak in the amplitude of vortex-excited vibration, which occurs similarly in the vortex-excited vibration of a vertical circular cylinder in waves, is also recognized for the right value of typical Scruton number Ksp.

Item Type: Article
ISSNs: 1053-5381 (print)
Related URLs:
Subjects: T Technology
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: University Structure - Pre August 2011 > School of Civil Engineering and the Environment
ePrint ID: 53802
Date Deposited: 22 Jul 2008
Last Modified: 27 Mar 2014 18:36
URI: http://eprints.soton.ac.uk/id/eprint/53802

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