Efficient Simulation of Freak Waves in Random Oceanic Sea States

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	Efficient Simulation of Freak Waves in Random Oceanic Sea States
	Zhang Yun-qiu 1,2; Hu Jin-peng 3; Zhang Ning-chuan 4
	2009
发表期刊	CHINA OCEAN ENGINEERING
ISSN	0890-5487
卷号	23 期号:1 页码:157-165
通讯作者	zhangyq6@ms.giec.ac.cn
摘要	Numerical simulations of freak wave generation are studied in random oceanic sea states described by JONSWAP spectrum. The evolution of initial random wave trains is numerically carried out within the framework of the modified four-order nonlinear Schroedinger equation (mNLSE), and some involved influence factors are also discussed. Results show that if the sideband instability is satisfied, a random wave train may evolve into a freak wave train, and simultaneously the setting of the Phillips parameter and enhancement coefficient of JONSWAP spectrum and initial random phases is very important for the formation of freak waves. The way to increase the generation efficiency of freak waves though changing the involved parameters is also presented.
文章类型	Article
其他摘要	Numerical simulations of freak wave generation are studied in random oceanic sea states described by JONSWAP spectrum. The evolution of initial random wave trains is numerically carried out within the framework of the modified four-order nonlinear Schroedinger equation (mNLSE), and some involved influence factors are also discussed. Results show that if the sideband instability is satisfied, a random wave train may evolve into a freak wave train, and simultaneously the setting of the Phillips parameter and enhancement coefficient of JONSWAP spectrum and initial random phases is very important for the formation of freak waves. The way to increase the generation efficiency of freak waves though changing the involved parameters is also presented.
关键词	Freak Waves Mnlse Sideband Instability Random Wave Jonswap Spectrum
WOS标题词	Science & Technology ; Technology ; Physical Sciences
研究领域[WOS]	Engineering ; Water Resources
URL	查看原文
关键词[WOS]	SCHRODINGER-EQUATION ; NORTH-SEA
收录类别	SCI
语种	英语
项目资助者	International Science and Technology Cooperation Program [2007DFA60490]; National Natural Science Foundation of China [50679078]; Innovation Foundation of Guangzhou Institute of Energy Conversion [0807r51001]
WOS类目	Engineering, Civil ; Engineering, Ocean ; Engineering, Mechanical ; Water Resources
WOS记录号	WOS:000265875700014
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/3346
专题	中国科学院广州能源研究所
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Peoples R China 3.S China Univ Technol, Sch Civil Engn & Transportat, Guangzhou 510641, Peoples R China 4.Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Zhang Yun-qiu,Hu Jin-peng,Zhang Ning-chuan. Efficient Simulation of Freak Waves in Random Oceanic Sea States[J]. CHINA OCEAN ENGINEERING,2009,23(1):157-165.
APA	Zhang Yun-qiu,Hu Jin-peng,&Zhang Ning-chuan.(2009).Efficient Simulation of Freak Waves in Random Oceanic Sea States.CHINA OCEAN ENGINEERING,23(1),157-165.
MLA	Zhang Yun-qiu,et al."Efficient Simulation of Freak Waves in Random Oceanic Sea States".CHINA OCEAN ENGINEERING 23.1(2009):157-165.

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