Hydrodynamic Interaction between Two Vertical Cylinders in Water Waves

Zhou Xianchu; Wang Dongjiao; Allen T. Chwang

Volume 18 Issue 10

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Article Navigation > Applied Mathematics and Mechanics > 1997 > 18(10): 867-878

Zhou Xianchu, Wang Dongjiao, Allen T. Chwang. Hydrodynamic Interaction between Two Vertical Cylinders in Water Waves[J]. Applied Mathematics and Mechanics, 1997, 18(10): 867-878.

Citation:

Zhou Xianchu, Wang Dongjiao, Allen T. Chwang. Hydrodynamic Interaction between Two Vertical Cylinders in Water Waves[J]. Applied Mathematics and Mechanics, 1997, 18(10): 867-878.

Citation:

Zhou Xianchu, Wang Dongjiao, Allen T. Chwang. Hydrodynamic Interaction between Two Vertical Cylinders in Water Waves[J]. Applied Mathematics and Mechanics, 1997, 18(10): 867-878.

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Hydrodynamic Interaction between Two Vertical Cylinders in Water Waves

1.
Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, P. R. China;
2.
Department of Mechanical Engineering, Hong Kong University, Hong Kong

Received Date: 1996-04-02
Publish Date: 1997-10-15

Abstract

Abstract

The hydrodynamic interaction between two vertical cylinders in water waves is investigated based on the linearized potential flow theory.One of the two cylinders is fixed at lhe bottom while the other is articulated at the bottom and oscillates with small amplitudes in the direction of the incident wave.Both the diffracted wave and the rediation wave are studied in the present paper.A simple analytical expression for the velocity potential on the surface of each cylinder is obtained by means of Graf's addition theorem.The wave-excited forces and moments on the cylinders,the added masses and the radiation damping coeffcients of the oscillating cylinder are all expressed explicitly in series form.The coeffcients of the series are determined by solving algebraic equations.Several numerical examples are given to illustrate the effects of various parameters,such as the separation distance,the relative size of the cylinders,and the incident angle,on the first-order and steady second-order forces,the added masses and radiation-damping coefficients as well as the response of theoscillating cylinder.
- wave-excited force,
- added masses.radiation damping,
- drift force,
- articulated cylinder,
- two vertical cylinders,

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References(15)

References

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