检索结果-南通市图书馆

Efficient Simulation of Freak Waves in Random Oceanic Sea States

China Ocean Engineering 2009年第1期23卷 157-165页

作者：张运秋胡金鹏张宁川 Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Key Laboratory of Renewable Energy and Gas Hydrate Chinese Academy of Sciences School of Civil Engineering and Transportation South China University of Technology State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology

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 namerically carried out within the framework of the modified fourorder 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 paranleter 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 thsough changing the involved parameters is also presented.

关键词： freak waves mnlse sideband instability random wave JONSWAP spectrum

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Modulation instability analysis, optical and other solutions to the modified nonlinear Schr?dinger equation

引用

Communications in Theoretical Physics 2020年第6期72卷 1-12页

作者： Muhammad Younis Tukur Abdulkadir Sulaiman Muhammad Bilal Shafqat Ur Rehman Usman Younas Punjab University College of Information Technology University of the PunjabLahore 54000Pakistan Faculty of Science Federal University DutseJigawaNigeria Department of Computer Engineering Biruni UniversityIstanbulTurkey

This paper studies the new families of exact traveling wave solutions with the modified nonlinear Schrodinger equation,which models the propagation of rogue waves in ocean *** extended Fan sub-equation method with five parameters is used to find exact traveling wave *** has been observed that the equation exhibits a collection of traveling wave solutions for limiting values of *** method is beneficial for solving nonlinear partial differential equations,because it is not only useful for finding the new exact traveling wave solutions,but also gives us the solutions obtained previously by the usage of other techniques(Riccati equation,or first-kind elliptic equation,or the generalized Riccati equation as mapping equation,or auxiliary ordinary differential equation method)in a combined ***,by means of the concept of linear stability,we prove that the governing model is stable.3 D figures are plotted for showing the physical behavior of the obtained solutions for the different values of unknown parameters with constraint conditions.

关键词： optical soliton mnlse stability analysis generalized elliptic equation extended Fan sub-equation method

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：