On the nonlinear hydrodynamic forces for a ship advancing in waves

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题名:	On the nonlinear hydrodynamic forces for a ship advancing in waves
作者:	Fang, Ming-Chung;Chen, Gung-Rong;陳光榮;(東方技術學院通識教育中心)
贡献者:	東方技術學院通識教育中心
关键词:	Nonlinear;Pulsating;Drift;Added resistance
日期:	2006-11
上传时间:	2010-06-10 18:49:49 (UTC+8)
摘要:	In this paper, using a second-order steady-state approach and a three-dimensional (3D) pulsating source distribution method derives the nonlinear hydrodynamic forces on a ship advancing in waves. The nonlinear hydrodynamic forces considered here consist of the mean lateral drifting force and the added resistance, which can be expressed as products of the ship-motion responses, the radiation potential, diffraction potential and the incident-wave potential. All related velocity potentials applied in the calculations are in 3D form. The Series 60 and Marine ship hulls are used for numerical calculations and the results are compared with existing experimental data and two-dimensional (2D) solutions. The comparisons show that the results obtained in the paper generally agree with experimental data well. It is also found that the nonlinear hydrodynamic forces obtained based on the present 3D source distribution methods are indeed improved in some calculations compared with the 2D method, especially for the mean lateral drifting force.
關聯:	Ocean Engineering, Vol.33 no.16, pp.2119-2134
显示于类别:	[通識教育中心] 期刊論文

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