复杂波浪场中防波堤掩护效果的数值模拟研究  

Numerical investigation of the performance of breakwaters in complicated wave fields

作　　者：魏远明 许彬彬 项家窍 马小舟[3] Wei Yuanming;Xu Binbin;Xiang Jiaqiao;Ma Xiaozhou(CCCC Fourth Harbor Engineering Co.,Ltd.,Guangzhou Guang dong 510290,China;The Second Engineering Company of CCCC Fourth Harbor Engineering Co.,Ltd.,Guangzhou Guang dong 510230,China;The State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian Liaoning 116024,China)

机构地区：[1]中交第四航务工程局有限公司,广东广州510230 [2]中交四航局第二工程有限公司,广东广州510230 [3]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

出　　处：《港口航道与近海工程》2024年第3期1-7,共7页Port,Waterway and Offshore Engineering

基　　金：国家自然科学基金面上项目:海上丝绸之路港口的港湾共振及其引起的系泊船响应研究(52071060)。

摘　　要：防波堤的布局以及波浪的工况条件会使泊位处的波高发生变化,影响系泊船的安全作业。结合南美洲某港口工程,采用基于Boussinesq型方程的MIKE21-BW模型,分析了复杂波浪场中防波堤对泊位的掩护效果,研究不同走向及不同长度的防波堤的掩护性能。结果表明,防波堤布局1在复杂波浪场中具有良好的掩护效果,各种工况中的有效波高均满足短波的波高限制,可以保证船舶的稳泊。但是防波堤布局1并不能对其有效地消解次重力波,随着波浪周期的增大,部分泊位处的次重力波高大于限制标准,可能会存在泊稳问题。布局2的掩护效果欠佳,无法满足限制标准。布局3的掩护效果有了显著的提升,泊位处的有效波高和次重力波高均得到了进一步的消解。研究成果为港口布局、系泊设计和港工建造提供了参考。The layouts of the breakwaters and the condition of the waves often make wave height chang at the berth,and thus disturb mooring task.Implements numerical simulations by MIKE21-BW based on Boussinesq type equations,to analyze the performance of breakwaters of a seaport project in South America both in complicated wave fields and various layouts.Results show that the layout 1 of breakwaters perform well in complicated wave fields,decreasing the significant wave height to the safe limit of short waves,ensuring operational efficiency and safety.However,this layout is less effective in shielding against infragravity(IG)waves with the increase of the period,the harbor may have operational problems in terms of the IG wave limit criteria.Layout 2 shows less reliable when compared to the layout 1,and can not meet the safe limit unsurprisingly.Layout 3 performs much well of decreasing significant wave height and IG waves height.

关 键 词：防波堤 涌浪 次重力波 数值模拟 BOUSSINESQ方程 

分 类 号：U653.4[交通运输工程—港口、海岸及近海工程]