| 二维浮体大幅运动水动力物面非线性时域解 |
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| 引用本文： | 段文洋,戴遗山.二维浮体大幅运动水动力物面非线性时域解[J].哈尔滨工程大学学报,1997,18(5):1-7. |
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| 作者姓名： | 段文洋 戴遗山 |
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| 作者单位： | 哈尔滨工程大学船舶与海洋工程系 |
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| 摘 要： | 基于时域自由面格林函数，建立了线性自由面条件下计及物体大幅运动瞬时湿表面条件的非线性水动力理论计算模型，重点研究了时域分布源在水线上的特性，指出了传统分布源法在处理浮体与自由面外张斜交的计算失败的原因，并提出了新的时域分布源数值计算模型，对实船计算表明，这种新模型简便有效。
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| 关 键 词： | 非线性时域解 波浪 船舶 浮体运动 水动力理论 |
Nonlinear time-domain solution of hydrodynamic forces ona 2-D floating body undergoing large amplitude motions |
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| Duan Wenyang,Dai Yishan.Nonlinear time-domain solution of hydrodynamic forces ona 2-D floating body undergoing large amplitude motions[J].Journal of Harbin Engineering University,1997,18(5):1-7. |
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| Authors: | Duan Wenyang Dai Yishan |
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| Abstract: | Based on the time-domain free surface Green function source distribution method,the problem of nonlinear hydrodynamic forces on a 2-D floating body with large amplitude motions is solved.In this approach,the exact body boundary conditions are satisfied on the instantaneous wetted surface of the moving body while the free surface boundary conditions are linearized.The characteristics of source strength on the waterline has been especially studied and a new numerical source model is presented for the floating body with large flare. |
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| Keywords: | time-domain solution large amplitude motion source distrbution |
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