防波堤平面布置对建设用海区波浪场影响的数值模拟  

Numerical simulation to effect on wave field caused by plane arrangement scheme of breakwater in construction sea area

作　　者：勾贺 李瑞杰[1,2] 董啸天 李玉婷[3,4,5] GOU He;LI Rui-jie;DONG Xiao-tian;LI Yu-ting(Key Laboratory of Coastal Disaster and Defence,Ministry of Education,Hohai University,Nanjing 210098,China;Laboratory of Ocean Environment,Hohai University,Nanjing 210098,China;Key Laboratory of Virtual Geographic Environment,Ministry of Education,Nanjing Normal University,Nanjing 210023,China;State Key Laboratory Cultivation Base of Geographical Environment Evolution(Jiangsu Province),Nanjing Normal University,Nanjing 210023,China;Jiangsu Center for Collaborative Innovation in Geographical InformationResource Development and Application,Nanjing Normal University,Nanjing 210023,China)

机构地区：[1]河海大学,海岸灾害及防护教育部重点实验室,江苏南京210098 [2]河海大学,环境海洋实验室,江苏南京210098 [3]南京师范大学,虚拟地理环境教育部重点实验室,江苏南京210023 [4]南京师范大学,大规模复杂系统数值模拟江苏省重点实验室,江苏南京210023 [5]南京师范大学,江苏省地理信息资源开发与利用协同创新中心,江苏南京210023

出　　处：《水运工程》2019年第6期15-20,45,共7页Port & Waterway Engineering

基　　金：国家自然科学基金项目(41276017)

摘　　要：为研究燕窝山工程海域在不同的防波堤平面布置下的波浪场分布特征,应用波作用守恒方程和Boussinesq方程建立了大、小范围的波浪数学模型对工程区附近海域的波浪场进行数值模拟,统计并分析工程前后防波堤附近波浪特征站位的波要素。基于防波堤基本布置方案1,改变防波堤的长度和轴线角度,根据不同平面布置下的防波堤对波浪的掩护效果进行比较分析。结果表明,综合考虑防波堤附近波浪场的变化特征、防波堤特征站位波要素的变化及防波堤的有效掩护面积3个方面,将防波堤轴线以两段堤相交处为圆心逆时针旋转8°,并将直堤向东侧延长100m,即方案2为优选方案。In order to study the distribution characteristics of wave field under different layouts of breakwaters in the engineering sea area of Yanwoshan,we carry out a numerical simulation of wave field near engineering area by using wave action conservation equation and Boussinesq equation to establish wave mathematical models in large and small scale,and analyze the wave parameters of wave observation station near breakwater.We change length and axis angle of breakwater based on the first plan so as to compare the shielding effect of waves under different layouts of breakwaters.The results show that when variation characteristics of wave field,wave parameters of wave observation station and effective shielding area are overall considered,the second plan is the suitable choice,the axis of the breakwater is intersected at the intersection of two dikes,the center is rotated 8°counterclockwise,and the embankment is extended 100 m to the east side.

关 键 词：波作用守恒方程 BOUSSINESQ方程 防波堤平面布置 波浪场 掩护面积 

分 类 号：U652.3[交通运输工程—港口、海岸及近海工程] U656.2[交通运输工程—船舶与海洋工程]