Vortex-excited vibration of a circular cylinder in planar oscillating flow
Vortex-excited vibration of a circular cylinder in planar oscillating flow
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.
266-273
Hayashi, K.
950b290e-4fd2-4532-b31f-a37f24ef736b
Higaki, F.
fc2effca-9e58-4e49-9ebd-f0ee267ffd64
Shigemura, T.
227a6996-4a50-41ef-9168-a705c3ada604
Chaplin, J.R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f
December 2003
Hayashi, K.
950b290e-4fd2-4532-b31f-a37f24ef736b
Higaki, F.
fc2effca-9e58-4e49-9ebd-f0ee267ffd64
Shigemura, T.
227a6996-4a50-41ef-9168-a705c3ada604
Chaplin, J.R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f
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), .
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.
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Published date: December 2003
Venue - Dates:
12th International Offshore and Polar Engineering Conference, , Kitakyushu, Japan, 2002-05-26 - 2002-05-31
Identifiers
Local EPrints ID: 53802
URI: http://eprints.soton.ac.uk/id/eprint/53802
ISSN: 1053-5381
PURE UUID: c57c37a3-ac28-4a67-9883-0db796c6ec57
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Date deposited: 22 Jul 2008
Last modified: 16 Mar 2024 03:13
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Contributors
Author:
K. Hayashi
Author:
F. Higaki
Author:
T. Shigemura
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