U型振荡水柱波能装置气室内波高影响因素  

Study of influencing factors of wave height in the chamber of U-OWC-type wave energy device

作　　者：耿敬[1] 朱睿 李明伟 赵玄烈 GENG Jing;ZHU Rui;LI Mingwei;ZHAO Xuanlie(College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China;State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001 [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：《哈尔滨工程大学学报》2020年第1期31-36,51,共7页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(51509056);黑龙江省自然科学基金项目(E2017028);港口海岸及近海工程国家重点实验室开放基金项目(LP1610);中央高校自由探索项目(HEUCFG201813)

摘　　要：针对U型振荡水柱波能装置(U-OWC)能量转换效率优化问题,基于不可压缩粘性流体理论和VOF方法建立二维数值波浪水槽,通过与解析解和实验结果进行对比,验证了数值模型的准确性。然后应用该数值模型对U-OWC波能装置气室内波高的影响因素开展研究,分析了气室前墙倾斜角度、气室内底面形状、波面非线性等因素对气室内相对波高的影响。结果表明:前墙倾角对U-OWC水动力特性有着明显的影响,合理调整前墙倾角可使得U-OWC波能装置气室内相对波高明显增大,有利于提高U-OWC波能装置的能量转换效率;高频波作用下,气室内底面增加圆弧可以增大气室内相对波高。Aiming at the optimization problem of the energy conversion efficiency of U-OWC-type wave energy device,a two-dimensional numerical wave flume was developed based on the incompressible viscous flow theory and volume of fluid method,and the accuracy of the model was verified by comparing the analytical solution with experimental results.Then,the influencing factors of the wave height in the chamber of the U-OWC-type wave energy device were investigated using the numerical simulation method.The effects of factors such as the inclination angle of the front wall of the chamber,the bottom shape of the chamber,and the nonlinearity of the wave surface on relative wave height in the chamber were emphatically analyzed.The results show that the inclination angle of the front wall has a significant influence on the hydrodynamic performance of the U-OWC-type wave energy converter.The relative wave height in the chamber of the U-OWC-type wave energy device is significantly improved by reasonably adjusting the inclination angle of the front wall,which is beneficial to improve the energy conversion efficiency of the U-OWC-type wave energy device.Under the action of high-frequency waves,the addition of the circular arc on the bottom of the chamber can increase the relative wave height in the chamber.

关 键 词：振荡水柱 计算流体动力学 VOF方法 二维数值波浪水槽 能量转换效率 气室内波高 影响因素 最优化 

分 类 号：TK79[动力工程及工程热物理—流体机械及工程]