利用Clark Y构造非对称翼型风机的正向通风性能对比  

Comparative Analysis of Forward Ventilation Performance for Fans with Asymmetric Airfoils Reconstructed Using Clark Y Airfoil

作　　者：王海民[1,2] 高涌东 胡峰 陈思 Wang Haimin;Gao Yongdong;Hu feng;Chen Si(College of Energy and Power Machinery Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Key Laboratory of Multiphase Flow and Heat Transfer in Shanghai Power Engineering,Shanghai 200093,China)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《流体机械》2020年第1期46-52,共7页Fluid Machinery

基　　金：国家自然科学基金项目(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)

摘　　要：针对双向通风的工程应用,基于Clark Y标准翼型设计了4种S型非对称翼型并应用至单级可逆轴流风机,通过数值模拟计算及性能试验分析,对比研究了采用不同S翼型的可逆风机仅在正向通风情况下的气动性能。数值模拟结果表明: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,减少了流动损失,而增加尾缘最大厚度会降低叶轮出口流通性能。因此,反映到风机的性能上,在满足逆向通风的流量和静压前提下,增加前缘最大厚度同时减少尾缘最大厚度,风机正向通风时效率及全压会随之发生下降。综合比较而言,本文所研究的运用在正向吹风工况中的4类可逆风机,其中F4性能较优,而F10性能相对最差。For the engineering application of reversible fans,four S-type asymmetric airfoils were designed based on Clark Y airfoil and applied to single-stage reversible axial-flow fans.Through numerical simulation and experimental performance analysis,the aerodynamic performance of the fans with different S-type aerofoils only in forward flow was compared.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 somewhat,thus the flow loss is reduced,while increasing the maximum thickness of the trailing edge will reduce the impeller outlet flow performance.Therefore,in terms of fan performance,under the premise of satisfying the flow and static pressure of the reversible fan,when increasing the max.thickness of the leading edge and reducing the max.thickness of the trailing edge at the same time,the efficiency and total pressure of the fan in forward ventilation would decrease accordingly.Through comprehensive comparison,for the four types of reversible fans of interest studied,which were applied in forward ventilation operating conditions,the performance of fan F4 was superior,whereas the performance of F10 was the worst.

关 键 词：Clark Y翼型 非对称翼型 可逆风机 正向吹风 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]