Experimental Researches on Reflective and Transmitting Performances of Quarter Circular Breakwater Under Regular and Irregular Waves  

作　　者：史艳娇 吴米玲 蒋学炼 李炎保 

机构地区：[1]Tianjin Key Laboratory of Soft Soil Characteristics & Engineering Environment, Tianjin Institute of Urban Construction [2]Wuhan Harbour Engineering Design and Research Co. Ltd, China Communications Construction Company Ltd [3]School of Civil Engineering, Tianjin University [4]State Key Laboratory of Hydraulics and Mountain River Engineering

出　　处：《China Ocean Engineering》2011年第3期469-478,共10页中国海洋工程（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 50779045);the Open Foundation of State Key Laboratory of Hydraulics and Mountain River Engineering (Grant No. 0710);the National Science Foundation for Post-Doctoral Scientists of China (Grant No. 20080440681);the Natural Science Foundation of Tianjin, China (Grant No. 10JCYBJC03700);the Scientific and Technologic Development Foundation of the Higher Education Institutions of Tianjin,China (Grant No. 20080906)

摘　　要：A series of regular and irregular wave experiments are conducted to study the reflective and transmitting performances of quarter circular breakwater （QCB） in comparison with those of semi-circular breakwater （SCB）. Based on regular wave tests, the reflection and transmission characteristics of QCB are analyzed and a few influencing factors are investigated. Then, the wave energy dissipation as wave passing over the breakwater is discussed based on the hydraulic coefficients of QCB and SCB. In irregular wave experiments, the reflection coefficients of QCB and their spectrums are studied. Finally, the comparisons between the experimental results and numerical simulations for QCB under regular and irregular wave conditions are presented.A series of regular and irregular wave experiments are conducted to study the reflective and transmitting performances of quarter circular breakwater （QCB） in comparison with those of semi-circular breakwater （SCB）. Based on regular wave tests, the reflection and transmission characteristics of QCB are analyzed and a few influencing factors are investigated. Then, the wave energy dissipation as wave passing over the breakwater is discussed based on the hydraulic coefficients of QCB and SCB. In irregular wave experiments, the reflection coefficients of QCB and their spectrums are studied. Finally, the comparisons between the experimental results and numerical simulations for QCB under regular and irregular wave conditions are presented.

关 键 词：quarter circular breakwater regular wave irregular wave reflection transmission 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程]