基于Clark Y的非对称翼型对可逆轴流风机性能影响的研究  

Effect of Clark Y based Asymmetric Airfoil on the Performance of Reversible Axial Flow Fan

作　　者：王海民[1] 高涌东 胡峰 陈思 WANG Hai-min;GAO Yong-dong;HU Feng;CHEN Si(College of Energy and Power Machinery Engineering,University of Shanghai for Science and Technology,Shanghai,China,Post Code:200093)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《热能动力工程》2020年第1期83-90,105,共9页Journal of Engineering for Thermal Energy and Power

基　　金：国家自然科学基金(51106099);气动噪声控制重点实验室开放基金(ANCL201602);2014上海市军民结合专项项目(26,2014)。

摘　　要：针对双向通风机的工程应用,基于Clark Y标准翼型采用尾部反接法设计了4种"S"型非对称翼型(反接段弦长与总弦长的占比分别为0.286、0.375、0.444和0.500),并应用至单级可逆轴流风机,通过数值模拟及风机性能试验对比分析4种可逆翼型的风机在双向来流中气动性能。研究表明:随着前缘厚度增加,风机进口截面的和叶顶间隙的湍流动能会有所下降,减小了流动损失,而增加尾缘最大厚度会降低叶轮出口流通性能;反映到风机的性能上,增加前缘最大厚度同时减小尾缘最大厚度,风机正向通风时效率及全压会有所下降,而反向通风时两者均有大幅提升;采用反接段弦长占比为0.444的非对称翼型风机整体性能较优。For the engineering application of bidirectional fan,four S-type asymmetric airfoils were designed based on Clark Y airfoil(The proportion of chord length and total chord length of the reverse joint is 0.286,0.375,0.444 and 0.500,respectively) and applied to single-stage reversible axial flow fans.The results show that as the thickness of the leading edge increases,the turbulent kinetic energy of the fan inlet section and the tip clearance will decrease,thus reducing the flow loss,but increasing the maximum thickness of the trailing edge will reduce the impeller outlet flow performance.Therefore,increasing the thickness of the leading edge while reducing the thickness of the trailing edge could decrease the efficiency and total pressure of the fan under forward operation,but it can greatly improve those parameters under reverse operation.The asymmetric wing type fan with a reverse chord length of 0.444 has a better overall performance.

关 键 词：Clark Y翼型 非对称翼型 可逆轴流风机 流场分布 性能试验 

分 类 号：TH432.1[机械工程—机械制造及自动化]