摘要
为研究海啸波与环形岛礁相互作用及致灾机理,基于开源程序Dual SPhysics建立了数值波浪水槽,探究了不同地形下海啸波的传播与演化过程,及其对环礁上的建筑物与潟湖内浮体的作用。结果表明,海啸在礁坪上形成的水流对建筑物底部的瞬时冲击力有较强的破坏性,需要提高建筑物底层的设计参数或在其前沿设置防护措施,对在潟湖内停泊船只,应尽量向海啸波来波方向对岸停泊。
In order to analyze the interaction between tsunami waves and atolls its disaster mechanism,we established a numerical wave flume based on the open source program of DualSPhysics and investigated the propagation and evolution process of solitary waves under different topography and their effects of wave propagation on buildings on the atolls and floating bodies in the lagoon.It is found that the current formed by the tsunami on the reef flat has a destructive effect on the instantaneous impact force at the bottom of the building,and consequently it is necessary to improve the design parameters of the bottom of the building or to take protective measures at the front of the building.As for the vessels mooring in the lagoon,they should try to anchor to the opposite side of the incoming tsunami wave。
作者
黄嘉豪
朱刘杰
崔庆宇
樊煜
倪兴也
HUANG Jiahao;ZHU Liujie;CUI Qingyu;FAN Yu;NI Xingye(College of Harbour,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China)
出处
《防灾科技学院学报》
2021年第2期29-38,共10页
Journal of Institute of Disaster Prevention
基金
中央高校基本业务费项目(2019B06514)
国家自然科学基金(51809238)。
关键词
数值模拟
海啸波
环礁
波浪传播变形
岛礁工程
波浪力
numerical simulation
tsunami wave
atoll
wave transformation deformation
reef engineering
waves impact
