非均匀堤心石斜坡式防波堤透浪系数模拟研究  

Simulation and Study of Wave Transmission Coefficient for Rubble Mound Breakwater with Non-Uniform Core Rocks

作　　者：徐佳玲 赵刘群 马玉祥[1] 马小舟[1] Xu Jialing;Zhao Liuqun;Ma Yuxiang;Ma Xiaozhou(State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian Liaoning 116024,China;The Second Engineering Company of CCCC Fourth Harbor Engineering Co.,Ltd.,Guangzhou Guangdong 510230,China)

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024 [2]中交四航局第二工程有限公司,广东广州510230

出　　处：《港工技术》2022年第4期10-17,共8页Port Engineering Technology

基　　金：国家自然科学基金项目(52071060)。

摘　　要：斜坡式防波堤是一种由块石和护面块体堆积而成的多孔介质结构,为了保证较长周期波作用下堤心石施工时的成型率,同时满足透射要求,现研究一种新型结构的斜坡堤在不规则波作用下的透浪规律。拟将斜坡堤静水位处部分区域的堤心石换成粒径较大的块石,利用数值试验的方法对新型斜坡堤的透射过程进行模拟。数值模型基于不可压缩粘性流体的N-S方程,并利用VOF法解决自由表面的追踪问题。文章对透射后的特征波及透射系数进行分析,并拟合出了透浪系数公式,为实际工程提供指导意见。Rubble mound breakwater is a kind of porous medium structure composed of rocks and protective blocks.In order to ensure the formation ratio of core rock under longer periodic waves and meet the requirements of transmission,a new type of slope breakwater is studied in order to produce the transmission law under irregular waves.It is proposed to replace part of core stones at static water level with large-grain rubble,and simulate the transmission process of new slope breakwater through numerical test.Numerical model is based on N-S equation of incompressible viscous fluid,and VOF method is used to complete free surface tracking.the characteristic wave and transmission coefficient are analyzed to deduce the formula for wave transmission coefficient by using fitting method,which may have important directive to actual projects.

关 键 词：斜坡式防波堤 堤心石 不规则波 透浪系数 

分 类 号：U653.4[交通运输工程—港口、海岸及近海工程]