Hydrodynamic Performance of An Integrated System of Breakwater and A Multi-Chamber OWC Wave Energy Converter  

作　　者：NING De-zhi ZHANG Xiang-yu WANG Rong-quan ZHAO Ming 

机构地区：[1]State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China [2]Dalian Key Laboratory of Offshore Renewable Energy,Dalian University of Technology,Dalian 116024,China [3]School of Computing,Engineering and Mathematics,University of Western Sydney,Penrith NSW 2751,Australia

出　　处：《China Ocean Engineering》2024年第4期543-556,共14页中国海洋工程（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.U22A20242,52271260,52001054);Natural Science Foundation of Liaoning Province(Grant No.2021-BS-060);Fundamental Research Funds for the Central Universities(Grant No.DUT23RC(3)017)。

摘　　要：A multi-chamber oscillating water column wave energy converter(OWC-WEC)integrated to a breakwater is investigated.The hydrodynamic characteristics of the device are analyzed using an analytical model based on the linear potential flow theory.A pneumatic model is employed to investigate the relationship between the air mass flux in the chamber and the turbine characteristics.The effects of chamber width,wall draft and wall thickness on the hydrodynamic performance of a dual-chamber OWC-WEC are investigated.The results demonstrate that the device,with a smaller front wall draft and a wider rear chamber exhibits a broader effective frequency bandwidth.The device with a chamber-width-ratio of 1:3 performs better in terms of power absorption.Additionally,results from the analysis of a triplechamber OWC-WEC demonstrate that reducing the front chamber width and increasing the rearward chamber width can improve the total performance of the device.Increasing the number of chambers from 1 to 2 or 3 can widen the effective frequency bandwidth.

关 键 词：oscillating water column power extraction efficiency potential flow theory wave energy converter multi-chamber 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程] P743.2[交通运输工程—船舶与海洋工程]