Radiation and diffraction analysis of a cylindrical body with a moon pool

An analytical solution is presented for the radiation and the diffraction of a cylindrical body with a moon pool floating on the surface of water with a finite depth. The expressions for the potentials are obtained by the method of separation of variables, and the unknown coefficients are determined...

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Published in	Journal of hydrodynamics. Series B Vol. 25; no. 2; pp. 196 - 204
Main Author	周华伟张洪生
Format	Journal Article
Language	English
Published	Singapore Elsevier Ltd 01.04.2013 Springer Singapore State Key Laboratory of Ocean Engineering, College of Naval Architecture, Ocean and Civil Engineering,Shanghai Jiao Tong University, Shanghai 200240, China%Ocean Environmental and Engineering College, Shanghai Maritime University, Shanghai 201306, China
Subjects	Cylindrical bodies Diffraction Engineering Engineering Fluid Dynamics Fluid dynamics Fluid flow hydrodynamics Hydrology/Water Resources Mathematical analysis mathematical models Moon Numerical and Computational Physics Pools radiation and diffraction, cylindrical body, moon pool, variable separation method, resonant frequencies Resonant frequencies Simulation surface water 分离变量圆筒体水动力特性衍射谐振频率辐射边界条件阻尼系数 radiation and diffraction, cylindrical body, moon pool, variable separation method, resonant frequencies resonant frequencies radiation and diffraction variable separation method moon pool cylindrical body
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ISSN	1001-6058 1878-0342
DOI	10.1016/S1001-6058(13)60354-6

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Summary:	An analytical solution is presented for the radiation and the diffraction of a cylindrical body with a moon pool floating on the surface of water with a finite depth. The expressions for the potentials are obtained by the method of separation of variables, and the unknown coefficients are determined by the boundary conditions and the matching requirements on the interface. The effects of the moon pool on the hydrodynamic characteristics of the body are investigated. Some peaks are observed on the curves of the added mass and damping coefficients, corresponding to the resonant frequencies of the moon pool. The internal free surface moves like a piston at a certain low resonant frequency.
Bibliography:	31-1563/T ZHOU Hua-wei,ZHANG Hong-sheng（State Key Laboratory of Ocean Engineering, College of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Ocean Environmental and Engineering College, Shanghai Maritime University, Shanghai 201306, China） An analytical solution is presented for the radiation and the diffraction of a cylindrical body with a moon pool floating on the surface of water with a finite depth. The expressions for the potentials are obtained by the method of separation of variables, and the unknown coefficients are determined by the boundary conditions and the matching requirements on the interface. The effects of the moon pool on the hydrodynamic characteristics of the body are investigated. Some peaks are observed on the curves of the added mass and damping coefficients, corresponding to the resonant frequencies of the moon pool. The internal free surface moves like a piston at a certain low resonant frequency. radiation and diffraction, cylindrical body, moon pool, variable separation method, resonant frequencies ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1001-6058 1878-0342
DOI:	10.1016/S1001-6058(13)60354-6