| 畸形波数值模拟和定点生成 |
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| 引用本文： | 裴玉国,张宁川,张运秋.畸形波数值模拟和定点生成[J].海洋工程,2006,24(4):20-26. |
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| 作者姓名： | 裴玉国 张宁川 张运秋 |
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| 作者单位： | 大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116024 |
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| 基金项目： | 教育部科学技术研究重点项目 |
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| 摘 要： | 采用David L等人提出的数值模拟产生畸形波的方法,以Longuet-Hinggins模型为基础,利用一个基本波列和一个瞬态波列线性叠加模拟波面,在很短的波列中得到畸形波,从而使模拟畸形波的效率提高。得到的畸形波畸形程度较高,并且可以控制畸形波出现的时间和地点。用该方法模拟实测畸形波并与其进行对比验证,结果表明模拟产生的畸形波和实测畸形波吻合良好。以此方法为基础,在实验室内物理产生畸形波将更加具有可操作性。
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| 关 键 词： | 畸形波 数值模拟 Longuet-Hinggins模型 瞬态波列 |
| 文章编号： | 1005-9865（2006）04-0020-07 |
| 收稿时间： | 2005-11-14 |
| 修稿时间： | 2005年11月14 |
Numerical simulation of freak waves and its generation at a certain location |
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| PEI Yu-guo,ZHANG Ning-chuan,ZHANG Yun-qiu.Numerical simulation of freak waves and its generation at a certain location[J].Ocean Engineering,2006,24(4):20-26. |
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| Authors: | PEI Yu-guo ZHANG Ning-chuan ZHANG Yun-qiu |
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| Institution: | State Key Laboratory of Coastal and Offshore Eng., Dalian University of Technology, Dalian 110324, China |
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| Abstract: | In the present paper,a new method offered by David L for generating freak waves is proposed.The method which is based on the Longuet-Hinggins model superposes a basic random wave train with a transient wave train so as to generate a short wave train including freak waves.It is shown that the freak wave can be generated at a certain time and a certain location with high simulating efficiency and the simulated shape of wave is more realistic.Compared with the record of freak waves,this simulation fits the measured data very well.The generation of freak waves in lab can be carried out easily by using the present method. |
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| Keywords: | freak wave numerical simulation Longuet-Hinggins model transient wave |
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