双振荡水柱波能转换装置波能俘获特性数值模拟研究  

Numerical simulation on hydrodynamic performance of a dualoscillating-water-column wave energy converter array

作　　者：杨毅 杨韬略 郭欣然 刘志刚 王红星 陈文 刘石 周宇 YANG Yi;YANG Tao−lue;GUO Xin−ran;LIU Zhi−gang;WANG Hong−xing;CHEN Wen;LIU Shi;ZHOU Yu(China Southern Power Grid Technology Co.,Ltd.,Guangzhou 510080.China;State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]南方电网电力科技股份有限公司,广州510080 [2]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：《船舶力学》2025年第4期585-596,共12页Journal of Ship Mechanics

基　　金：南方电网电力科技股份有限公司预研项目(NYJS2020KJ005-23);国家重点研发计划项目(2019YFB1504400);国家自然科学基金资助项目(52301313);海岸及近海工程国家重点实验室项目(SL2304)。

摘　　要：振荡水柱(OWC)波能转换装置具有结构简单、易于维护等优点,因此受到了全世界的关注。然而,该装置仍然面临着能量转换效率低和有效频带宽度窄等问题。本文对离岸双OWC阵列装置的波能俘获性能进行数值模拟研究。基于势流理论,在OWC波能装置气室的一阶和二阶自由表面边界上引入气动阻尼和人工阻尼,建立可考虑气液耦合的非线性气动模型。为了验证数值模型的准确性,进行水槽物理模型试验,并将数值结果与试验结果进行对比,发现两者吻合良好。研究结果显示:阵列装置之间的多重绕射波浪会导致装置的气室共振频率发生偏移;合理布置阵列装置有助于提升OWC波能装置的相对俘获宽度和有效频带宽度,最大可分别提升61.7%和24.5%。Oscillating-water-column(OWC)wave energy converters(WECs)have attracted worldwide attention because of their simple structures and easy maintenance.However,they still face the issues of low energy conversion efficiency and narrow effective frequency bandwidth.A numerical simulation of the hydrodynamic performance of an offshore stationary dual-OWC array was conducted.Based on the potential flow theory,a nonlinear aerodynamic model considering air-liquid coupling was constructed by introducing aerodynamic and artificial damping on the first and second-order free surface boundaries of the OWC chamber.A set of physical experiments were carried out to validate the numerical model,and a good agreement between the experimental and numerical results was achieved.The results show that the chamber resonant frequency shifts due to the multiple diffraction waves between component devices.Appropriate array arrangement helps to improve the relative capture width and effective frequency bandwidth of the OWC wave energy devices,with a maximum increase of 61.7%and 24.5%,respectively.

关 键 词：离岸振荡水柱波能转换装置 阵列装置 波能俘获 高阶边界元 物理实验 

分 类 号：P743.2[天文地球—海洋科学]