Numerical simulation and mechanism analysis of freak waves in random oceanic sea states

被引：0

作者：

Zhang, Yunqiu ^{[1
]}

Zhang, Ningehuan ^{[1
]}

Pei, Yuguo ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Liaoning, Peoples R China

来源：

PROCEEDINGS OF THE SEVENTEENTH (2007) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 1- 4, PROCEEDINGS | 2007年

关键词：

freak wave; modified nonlinear Schrodinger equation; numerical simulation; JONSWAP spectrum; nonlinear focusing;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Numerical simulation of freak wave generation in random oceanic sea states described by JONSWAP spectrum is carried out based on the modified four-order nonlinear Schrodinger (mNLS) equation in deep water. By comparison of the variation of each term modulus in mNLS equation and the power spectra for freak wave occurrences, it can be concluded that nonlinear focusing of some components with approximate frequencies to the dominant frequency is one possible mechanism of freak waves. Effects of the relevant parameters on freak wave formation are also discussed.

引用

页码：1806 / 1810

页数：5

共 12 条

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