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孤立波激发港口振荡的数值研究

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2014-08-15

Journal: 计算力学学报

Included Journals: Scopus、CSCD、ISTIC、PKU

Volume: 31

Issue: 4

Page Number: 511-516

ISSN: 1007-4708

Key Words: 孤立波;Boussinesq波浪模型;小波分析;港口;港池固有频率

Abstract: 采用Boussinesq数值波浪模型模拟了在孤立波作用下复杂形状港内水体的响应。孤立波在进入港口后会引起港内水体的振荡并被反射,港内波面扰动是一个随时间变化的瞬变波动过程。通过基于连续小波变换的时频分析结果并与现有的理论值进行比较发现,孤立波引起的振荡其主要能量主要集中在港池第一振荡模态上,这为估计复杂形状港口的自振频率提供了一个可行的方法。

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