吴锋   

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Language:English

Paper Publications

Title of Paper:位移浅水内孤立波

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Date of Publication:2019-06-15

Journal:计算力学学报

Included Journals:PKU

Volume:36

Issue:3

Page Number:297-303

ISSN No.:1007-4708

Key Words:内孤立波;Lagrange坐标;Hamilton原理

Abstract:研究两层浅水系统中的内孤立波,该系统由两层常密度不可压缩无黏性水组成.利用Lagrange坐标和Hamilton原理,推导了两层浅水系统的位移浅水内波方程,并进一步导出了两层浅水系统的位移内孤立波解.数值实验表明,位移内孤立波与经典的KdV内孤立波吻合很好,说明Lagrange坐标和Hamilton方法适用于内波分析,可以为构造内波分析的保辛方法提供一种途径.

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