Numerical Simulation of Waves Generated by Seafloor Movements

IOCAS-IR > 海洋环流与波动重点实验室

	Numerical Simulation of Waves Generated by Seafloor Movements
	He Hai-lun 1,2,4; Song Jin-bao 1,3; Li Shuang1,3,4 ; Yang Jian-ping 5
	2008
发表期刊	CHINA OCEAN ENGINEERING
ISSN	0890-5487
卷号	22 期号:4 页码:693-704
文章类型	Article
摘要	Waves generated by vertical seafloor movements are simulated by use of a fully nonlinear two-dimensional numerical wave tank. In the source region, the seafloor lifts to a designated height by a generation function. The numerical tests show that file linear theory is only valid for estimating the wave behaviors induced by the seafloor movements with a small amplitude, and the fully nonlinear numerical model should be adopted in the simulation of the wave generation by the large amplitude seafloor movements. Without the background surface waves, many numerical tests on the stable maximum elevations eta(max)(0) are carried out by both the linear theory and the fully nonlinear model. The results of two models are compared and analyzed. For the fully nonlinear model, the influences of the amplitudes and the horizontal lengths on eta(max)(0) are stronger than that of the characteristic duration times. Furthermore, results reveal that there are significant differences between the linear theory and the fully nonlinear model. When the influences of the background surface waves are considered, the corresponding numerical analyses reveal that with the fully nonlinear model the eta(max)(0) near-linearly varies with the wave amplitudes of the surface waves, and the eta(max)(0) has significant dependences on the wave lengths and the wave phases of the surface waves. In addition, the differences between the linear theory and the fully nonlinear model are still obvious, aid these differences are significantly affected by The wave parameters of the background surface waves, such as the wave amplitude, the wave length and the wave phase.; Waves generated by vertical seafloor movements are simulated by use of a fully nonlinear two-dimensional numerical wave tank. In the source region, the seafloor lifts to a designated height by a generation function. The numerical tests show that file linear theory is only valid for estimating the wave behaviors induced by the seafloor movements with a small amplitude, and the fully nonlinear numerical model should be adopted in the simulation of the wave generation by the large amplitude seafloor movements. Without the background surface waves, many numerical tests on the stable maximum elevations eta(max)(0) are carried out by both the linear theory and the fully nonlinear model. The results of two models are compared and analyzed. For the fully nonlinear model, the influences of the amplitudes and the horizontal lengths on eta(max)(0) are stronger than that of the characteristic duration times. Furthermore, results reveal that there are significant differences between the linear theory and the fully nonlinear model. When the influences of the background surface waves are considered, the corresponding numerical analyses reveal that with the fully nonlinear model the eta(max)(0) near-linearly varies with the wave amplitudes of the surface waves, and the eta(max)(0) has significant dependences on the wave lengths and the wave phases of the surface waves. In addition, the differences between the linear theory and the fully nonlinear model are still obvious, aid these differences are significantly affected by The wave parameters of the background surface waves, such as the wave amplitude, the wave length and the wave phase.
关键词	Boundary Element Method Numerical Wave Tank Seafloor Movement Surface Waves
学科领域	Engineering, Civil ; Engineering, Ocean ; Engineering, Mechanical ; Water Resources
收录类别	SCI
语种	英语
WOS记录号	WOS:000266089100014
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/5214
专题	海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Hohai Univ, Coll Traff & Ocean Engn, Nanjing 210098, Peoples R China 3.Chinese Acad Sci, KLOCAW, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 5.Inner Mongolia Machine Elect Occupat Tech Coll, Hohhot 010051, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	He Hai-lun,Song Jin-bao,Li Shuang,et al. Numerical Simulation of Waves Generated by Seafloor Movements[J]. CHINA OCEAN ENGINEERING,2008,22(4):693-704.
APA	He Hai-lun,Song Jin-bao,Li Shuang,&Yang Jian-ping.(2008).Numerical Simulation of Waves Generated by Seafloor Movements.CHINA OCEAN ENGINEERING,22(4),693-704.
MLA	He Hai-lun,et al."Numerical Simulation of Waves Generated by Seafloor Movements".CHINA OCEAN ENGINEERING 22.4(2008):693-704.

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