Study on Submerged Upper Arc-Shaped Plate Type Breakwater  

作　　者：WANG Ke SHI Peng-fei CHEN Yu-chao CHENG Xiao-ming 

机构地区：[1]State Key Laboratory of Structural Analysis for Industrial Equipment,Department of Engineering Mechanics,Dalian University of Technology [2]China Ship Scientific Research Center

出　　处：《China Ocean Engineering》2019年第2期219-225,共7页中国海洋工程（英文版）

基　　金：financially supported by the National Key Basic Research Program of China(Grant No.2013CB036101);the National Natural Science Foundation of China(Grant No.11702054)

摘　　要：Based on the wave radiation and diffraction theory, this paper investigates a new type breakwater with upper arcshaped plate by using the boundary element method(BEM). By comparing with other three designs of plate type breakwater(lower arc-shaped plate, single horizontal plate and double horizontal plate), this new type breakwater has been proved more effective. The wave exiting force, transmission and reflection coefficients are analyzed and discussed. In order to reveal the wave elimination mechanism of this type of breakwater, the velocity field around the breakwater is obtained. It is shown that:(1) The sway exciting force is minimal.(2) When the ratio of the submergence and wave amplitude is 0.05, the wave elimination effect will increase by 50% compared with other three types of breakwater.(3) The obvious backflow is found above the plate in the velocity field analysis.Based on the wave radiation and diffraction theory, this paper investigates a new type breakwater with upper arcshaped plate by using the boundary element method(BEM). By comparing with other three designs of plate type breakwater(lower arc-shaped plate, single horizontal plate and double horizontal plate), this new type breakwater has been proved more effective. The wave exiting force, transmission and reflection coefficients are analyzed and discussed. In order to reveal the wave elimination mechanism of this type of breakwater, the velocity field around the breakwater is obtained. It is shown that:(1) The sway exciting force is minimal.(2) When the ratio of the submergence and wave amplitude is 0.05, the wave elimination effect will increase by 50% compared with other three types of breakwater.(3) The obvious backflow is found above the plate in the velocity field analysis.

关 键 词：UPPER arc-shaped plate type BREAKWATER boundary element method transmission and reflection coefficient velocity field analysis 

分 类 号：P[天文地球]