斜向浪沿直立结构传播时能量变化的试验研究  

Experimental study on energy variation of oblique wave propagating along vertical structure

作　　者：耿宝磊[1] 刘二利 张慈珩[1] 彭程[1] GENG Bao-lei;LIU Er-li;ZHANG Ci-heng;PENG Cheng(Tianjin Research Institute for Water Transport Engineering,National Engineering Laboratory for Port Hydraulic Construction Technology, Key Laboratory of Engineering Sediment, Ministry of Transport, Tianjin 300456, China;China Merchants International Container Terminals Ningbo,Daxie Co. LTD., Ningbo 315812,China)

机构地区：[1]交通运输部天津水运工程科学研究所,港口水工建筑技术国家工程实验室,工程泥沙交通行业重点实验室,天津300456 [2]宁波大榭招商国际码头有限公司,宁波315812

出　　处：《水道港口》2020年第6期635-642,共8页Journal of Waterway and Harbor

基　　金：国家自然科学基金资助项目(51809133);交通运输部天津水运工程科学研究院科研创新基金项目(TKS20200406)。

摘　　要：文章通过整体物理模型试验研究了斜向浪与直立结构作用问题,试验中波浪入射角度从0°~45°变化,共布置87根传感器组成采集阵列对堤前的波高进行系统地观测,通过自相关函数法计算波浪功率谱进而分析整个波浪场能量变化。研究表明,波浪以不同角度入射时,直立堤前不同位置的功率谱与入射波功率谱相比,谱峰周期基本不变,但随着波浪入射角的增加,谱峰值逐渐增大;在直立堤轴线方向上,当入射角度小于30°时,波能随波浪传播沿堤积累,并与传播距离呈线性趋势上升,最大可达到堤头处波能的12~14倍;在直立堤法线方向上,波能随离堤距离的增大逐渐衰减,并呈现一定的周期性。In this paper,the effect of oblique wave and vertical structure was studied through the whole physical model test.In the test,the wave incidence angle was changed from 0°to 45°,and a total of 87 sensors were arranged to form a collection array to systematically observe the wave height in front of the breakwater.The wave power spectrum was calculated by the autocorrelation function method,and then the energy change of the whole wave field was analyzed.The results show that the peak period of the power spectrum at different positions in front of the vertical breakwater is basically the same as that of the incident wave when the wave is incident at different angles,but with the increase of the incident angle of the wave,the peak value of the spectrum increases gradually;in the direction of the axis of the vertical breakwater,when the incident angle is less than 30°,the wave energy accumulates along the breakwater with the wave propagation,and increases linearly with the propagation distance,and the maximum value can reach about 12-14 times of the wave energy at the breakwater head;In the normal direction of the vertical breakwater,the wave energy decreases with the increase of the distance from the breakwater,and changes periodically.

关 键 词：斜向浪 Stem波 波能 直立堤 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程] TV139.26[交通运输工程—船舶与海洋工程]