波浪布拉格共振研究进展.PDFVIP

第36卷第3期 水 利 水 电科 技 进 展 2016年5月 Vol.36 No.3 Advances in Science and Technology of Water Resources May2016 DOI:10.3880/ j.issn.1006 7647.2016.03.017 波浪布拉格共振研究进展 1,2 1,2 1,2 1,2 1,2 郑金海 ,余豪丰 ,陶爱峰 ,范摇 骏 ,王摇 懿 (1.海岸灾害及防护教育部重点实验室(河海大学),江苏 南京摇 210098; 2.河海大学港口海岸与近海工程学院,江苏 南京摇 210098) 摘要:为给河口海岸防护工程设计和地形演变预测提供科学依据,研究了波浪从外海向近岸传播过 程中在一定地形条件下产生的布拉格共振现象。 介绍了波浪布拉格共振的定义、特征和研究意义, 评述了现场观测、理论研究、水槽试验、数值模拟等4种研究方法的优缺点,总结了波浪布拉格共振 类型、低阶共振反射系数公式和高阶共振数值模拟的研究成果,提出了波浪布拉格共振主频下移、 不规则波布拉格共振特性、波流相互作用下布拉格共振机理等3 个亟待深入研究的课题。 关键词:波浪;布拉格共振;非线性共振;主频下移;波流相互作用;述评 中图分类号:P731郾22摇 摇 摇 文献标志码:A摇 摇 摇 文章编号:1006 7647(2016)03 0083 05 1,2 1,2 1,2 1,2 Research progress in wave Bragg resonance/ / ZHENGJinhai ,YU Haofeng ,TAO Aifeng ,FAN Jun ,WANG 1,2 Yi (1. Key Laboratory of Coastal Disaster and Defence (Hohai University),Ministry of Education,Nanjing 210098, China;2.College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China) Abstract:Bragg resonance phenomena,occurring as waves propagating from the sea to shallow water under particular topographic conditions, were studied to provide a scientific basis for the design of estuarine and coastal protection engineering and theforecastofmorphodynamicevolution. ThedefinitionandcharacteristicsofwaveBraggresonanceaswell as the significance of research are introduced,and the pros and cons of four approaches for study of the phenomena are reviewed,including field observation,theoretical analysis,numerical simulation,and experimental investigation. Major achievements regarding the types of wave Bragg reso