Radiation and diffraction analysis of a cylindrical body with a moon pool |
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| Authors: | ZHOU Hua-wei ZHANG Hong-sheng |
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| Affiliation: | 1. State Key Laboratory of Ocean Engineering, College of Naval Architecture, Ocean and Civil Engineering,Shanghai Jiao Tong University, Shanghai 200240, China
2. Ocean Environmental and Engineering College, Shanghai Maritime University, Shanghai 201306, China |
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| Abstract: | 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. |
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| Keywords: | radiation and diffraction cylindrical body moon pool variable separation method resonant frequencies |
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