| 粘性流中船舶横摇阻尼计算 |
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| 引用本文： | 黄昊,郭海强,朱仁传,缪国平.粘性流中船舶横摇阻尼计算[J].船舶力学,2008,12(4). |
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| 作者姓名： | 黄昊 郭海强 朱仁传 缪国平 |
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| 作者单位： | 上海交通大学,海洋工程国家重点实验室,上海,200030;上海交通大学,船舶海洋与建筑工程学院,上海,200030 |
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| 摘 要： | 船舶横摇阻尼的确定是准确预报船舶在波浪中运动的关键之一.本文以粘性流理论为基础,以连续性方程和N-S方程为控制方程.对Series 60船型的二维横剖面绕流进行了数值模拟,计算分析了不同工况下船体剖面的横摇阻尼系数,并与相关实验结果进行了比较.对比和研究表明,本文的方法能给出船舶横摇运动诱导的涡,船体的横摇阻尼等,可进一步拓展应用于船舶在波浪中运动的分析预报和优化设计等方面.
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| 关 键 词： | 粘性流 横摇阻尼 数值模拟 |
Computations of ship roll damping in viscous flow |
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| HUANG Hao,GUO Hai-qiang,ZHU Ren-chuan,MIAO Guo-ping.Computations of ship roll damping in viscous flow[J].Journal of Ship Mechanics,2008,12(4). |
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| Authors: | HUANG Hao GUO Hai-qiang ZHU Ren-chuan MIAO Guo-ping |
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| Abstract: | A crucial key to accurately predict ship motion in waves is the computation of ship roll damping. Based on viscous flow theory, a numerical simulation of roll of ship section (Series 60) is carried out by solving the continuous equation and the Navier-Stokes equation. The roll damping coefficients of ship sections are obtained which agree well with the corresponding experimental ones.The vortex induced by ship rolling can be clearly observed in the numerical simulation results. It is of great significance to further analyze and predict ship motion in waves. |
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| Keywords: | viscous flow roll damping numerical simulation |
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