透空防波堤和振荡水柱波能装置集成系统水动力性能研究  

RESEARCH ON HYDRODYNAMIC PERFORMANCE OF INTEGRATED SYSTEM OF PERMEABLE BREAKWATER AND OSCILLATING WATER COLUMN WAVE ENERGY DEVICE

作　　者：张翔宇 宁德志[1] MAYON Robert 王荣泉[1] ZHANG Xiang-yu;NING De-zhi;MAYON Robert;WANG Rong-quan(State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,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,大连116024

出　　处：《工程力学》2025年第4期246-252,共7页Engineering Mechanics

基　　金：国家自然科学基金项目(U22A20242,52001054);辽宁省兴辽英才计划项目(XLYC2002033);辽宁省自然科学基金博士启动基金项目(2021-BS-060);中央高校基本科研业务费资助项目(DUT23RC(3)017)。

摘　　要：开发和利用可再生能源是解决能源危机的重要途径。波浪能作为一种可再生能源引起了世界各国的关注,其中振荡水柱(Oscillating Water Column,OWC)式波能装置是一种应用最广泛的波浪能转换技术。关于OWC的研究多集中于如何提高能量转换效率,但是由于海况的复杂性,装置面临很大的生存压力,提高装置的生存能力变得愈加重要。透空式防波堤形式已经有很多应用,它对高频短波消浪效果很好,对低频长波则较差,而振荡水柱波能装置对长波吸收能力较强。该研究将透空式防波堤和OWC装置有效结合起来,基于线性势流理论,运用分离变量法和特征函数匹配法建立了解析模型,研究了单独透空式防波堤形式下,不同开孔率对反射系数的影响;之后研究了集成系统下透空结构与OWC装置距离对反射系数、水动力效率等的影响,并与单独透空式防波堤和单独OWC装置对比,说明集成装置消浪的优越性。The development and utilization of renewable energy is an important way to deal with the growing energy crisis.As one form of renewable energy,wave energy has attracted the attention of many countries all over the world.The oscillating water column(OWC)wave energy device is one of the most widely used wave energy conversion technologies.Most of the previous research on OWC focuses on how to improve its energy conversion efficiency.However,the survivability of the device faces great challenges due to the complexity of sea conditions.Thus,it is important to improve the survivability of the device.The permeable breakwater has been widely implemented.It exhibits good performance in dissipating high-frequency short waves,but a poor performance in dissipating low-frequency long waves.The oscillating water column wave energy device has a strong ability to absorb long waves.In this study,the permeable breakwater and the OWC device were effectively combined.Based on the linear potential flow theory,an analytical model has been established by using the separation of variables method and the eigenfunction expansion matching method.The effect of porosity of a solitary permeable breakwater on the reflection coefficient was studied.Then,the effect of the distance between the permeable structure and the OWC device on the reflection coefficient and the hydrodynamic efficiency was studied.Compared with the solitary permeable breakwater and solitary OWC device,the integrated system exhibited superiority in terms of wave elimination.

关 键 词：振荡水柱 防波堤 透空结构 水动力效率 反射系数 

分 类 号：TV139.26[水利工程—水力学及河流动力学] P743.2[天文地球—海洋科学]