基于平面叶栅模型CFD数据的Wells透平设计方法  

DESIGN METHOD OF WELLS TURBINE BASED ON CFD RESULTS OF PLANE CASCADE MODEL

作　　者：伍儒康 吴必军[1,2,3] Wu Rukang;Wu Bijun(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China;Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou 510640,China;Key Laboratory of Renewable Energy,Chinese Academy of Sciences,Guangzhou 510640,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院广州能源研究所,广州510640 [2]广东省新能源和可再生能源研究开发与应用重点实验室,广州510640 [3]中国科学院可再生能源重点实验室,广州510640 [4]中国科学院大学,北京100049

出　　处：《太阳能学报》2020年第4期137-144,共8页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51579231);广东省科技发展专项资金(2017A010104012);广东省海洋与渔业发展专项资金(A201701B08)。

摘　　要：提出基于Wells透平平面叶栅CFD数据的设计方法,使用CFD方法得到不同NACA翼型在不同叶栅稠度下的压力系数曲线、效率曲线,并使用这些CFD数据设计一个新的叶轮。实验结果表明:在稳定流动下,当前用于微型导航,用波浪能发电装置叶轮的最高转换效率约为46.61%,而该文设计叶轮的最高转换效率为50.50%;在规则波流动下,当前使用的叶轮的最高转换效率约为41.14%,而该文设计叶轮的最高转换效率为44.66%;当流量系数大于0.067时,该文设计叶轮的转换效率基本上高出当前使用叶轮转换效率10%;此外,该文设计叶轮的高效区的流量系数范围更大,使得新型Wells透平在随机波下有望实现更高的转换效率。This paper puts forward a design method of Wells turbine based on the plane cascade’s CFD results.The pressure coefficient curves and efficiency curves of different NACA airfoils with different blade solidity are obtained by using the CFD method.Then,an impeller is designed by using these CFD data.The experimental results show the maximum conversion efficiency of the current impeller used in the micro wave energy generating device for navigation under steady flow conditions is 46.61%,but the maximum conversion efficiency of the impeller designed in this work is 50.50%.Under regular flow condition,the current impeller has the maximum conversion efficiency of 41.14%,but the new impeller has 44.66%.Furthermore,when the flow coefficient is greater than 0.067,the efficiency of the new impeller is about 10% higher than that of the current impeller.In addition,the flow coefficient range with a high efficiency of this impeller is larger than that of the current impeller,so that the new Wells turbine is expected to achieve higher conversion efficiency in irregular wave.

关 键 词：波浪能 能量转换 叶栅 振荡水柱 Wells透平 

分 类 号：O325[理学—一般力学与力学基础] TK79[理学—力学]