新型悬浮式双向潮流发电装置的设计与研究  

DESIGN AND RESEARCH OF NEW SUSPENDING BIDIRECTIONAL TIDAL CURRENT ENERGY GENERATION DEVICE

作　　者：王世明[1] 骆锐东 董超 丁成林 WANG ShiMing;LUO RuiDong;DONG Chao;DING ChengLin(College of Engineering,Shanghai Ocean University,Shanghai 201306,China)

机构地区：[1]上海海洋大学工程学院,上海201306

出　　处：《机械强度》2021年第4期881-887,共7页Journal of Mechanical Strength

基　　金：国家自然科学基金项目(41976194)资助。

摘　　要：当今世界能源紧缺,潮流能因自身诸多优越性一直是各国研究的热点。针对目前潮流能水轮机普遍无法双向获能的问题,设计一种新型叶轮。利用翼型分析软件Xfoil和仿真软件Fluent对基础翼型NACA24112进行数值计算,截取其前半段设计出新"S"翼型并进行动力学分析,根据Wilson设计方法求出叶片各个截面的弦长和扭角,修正后利用Catia进行三维建模并用Fluent对其仿真分析;为了提高叶轮的获能功率,设计了一种双向折线型导流罩,经Fluent仿真验证了其最佳扩口角度为26°;通过水槽实验,验证了叶轮具有较好的双向获能特性,得益于导流罩的聚流增速作用,使其具有较低的启动流速,在额定流速2 m/s时能达到最大获能效率25.4%。The world is short of energy,tidal current energy has been a hot topic in many countries because of its superiority.In this paper,a new type of impeller was designed to solve the problem that the current tidal current turbine couldn’t catch energy in both directions.The basic airfoil NACA24112 was calculated by the airfoil analysis software Xfoil and simulation software Fluent and used to design a new"S"airfoil,The chord length and twist angle of each blade section were calculated according to Wilson method,finally used CATIA for 3 d modeling and Fluent for simulating the model.A bidirectional fairing was designed to improve power generation,and its best flaring angle was 26°by Fluent simulation analysis.Through the flume experiment,the results show the impeller has good bidirectional characteristic and has low start velocity thanks to the effect of fairing,and can reach the maximum generation efficiency about 25.4%at 2 m/s.

关 键 词：叶片设计 导流罩 Fluent仿真 水槽实验 

分 类 号：P742[天文地球—海洋科学] TK73[交通运输工程—轮机工程]