Numerical simulation of freak waves based on the four-order nonlinear Schrodinger equation

被引：0

作者：

Zhang Yun-qiu ^{[1
]}

Zhang Ning-chuan ^{[1
]}

Pei Yu-guo ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China

来源：

CHINA OCEAN ENGINEERING | 2007年 / 21卷 / 02期

关键词：

freak waves; nonlinear Schrodinger equation; numerical model;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A numerical wave model based on the modified four-order nonlinear Schrodinger (NLS) equation in deep water is developed to simulate freak waves. A standard split-step, pseudo-spectral method is used to solve NLS equation. The validation of the model is firstly verified, and then the simulation of freak waves is performed by changing sideband conditions. Results show that freak waves entirely consistent with the definition in the evolution of wave trains are obtained. The possible occurrence mechanism of freak waves is discussed and the relevant characteristics are also analyzed.

引用

页码：207 / 214

页数：8

共 20 条

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