No. 24 (1994), Conference Proceedings
No. 24 (1994)

WAVE FORCES ACTING ON A VORTEX EXCITED VIBRATING CYLINDER IN WAVES

Conference Proceedings
Published 1994-01-29
Kenjiro Hayashi
Civ. Engrg. Dept. , The National Defense Academy
Futoshi Hagaki
Civ. Engrg. Dept. , The National Defense Academy
Koji Fujima
Civ. Engrg. Dept. , The National Defense Academy
Toshiyuki Sigemura
Civ. Engrg. Dept. , The National Defense Academy
John R. Chaplin
Civ. Engrg. Dept., The City University, Northampton Square London
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Keywords

wave forces
vortex
cylinder

How to Cite

WAVE FORCES ACTING ON A VORTEX EXCITED VIBRATING CYLINDER IN WAVES. (1994). Coastal Engineering Proceedings, 1(24). https://doi.org/10.9753/icce.v24.%p
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Abstract

An experimental investigations into the wave forces acting on the vortex-excited vibrating vertical circular cylinder in regular waves have been performed with emphasis being placed on the amplification of the wave forces caused by the fluid-structure interaction. The cylinder is vibrating only in the transverse, cross-flow, direction by means of the restriction of the vibration of the in-line direction. The results indicate that the existence of amplification of the lift forces acting on the vortex-excited vibrating cylinder in comparison with the stationary cylinder is a function of the ratio of wave frequency fw to the natural frequency of the cylinder in water fnw and Keulegan-Carpenter number at still water level CKC. The in-line forces are also amplified in the range of CKC where large amplitude of oscillation in the transverse direction occurs.
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