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
刊名	china ocean engineering
	2009
卷号	23 期号:1 页码:157-165
关键词	freak waves mNLSE sideband instability random wave JONSWAP spectrum
ISSN号	0890-5487
通讯作者	zhangyq6@ms.giec.ac.cn
中文摘要	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.
英文摘要	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.
WOS标题词	science & technology ; technology ; physical sciences
类目[WOS]	engineering, civil ; engineering, ocean ; engineering, mechanical ; water resources
研究领域[WOS]	engineering ; water resources
关键词[WOS]	schrodinger-equation ; north-sea
收录类别	SCI
资助信息	international science and technology cooperation program [2007dfa60490]; national natural science foundation of china [50679078]; innovation foundation of guangzhou institute of energy conversion [0807r51001]
原文出处	http://dlib.cnki.net/kns50/navi/item.aspx?naviid=1&baseid=chiu&navilink=china%20ocean%20engineering
语种	英语
WOS记录号	WOS:000265875700014
公开日期	2010-09-16
内容类型	期刊论文
源URL	[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
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.