流体机械2018，Vol.46Issue(4)：34-39,6.DOI:10.3969/j.issn.1005-0329.2018.04.007
叶顶间隙和导流罩的安装位置对轴流风机流场的影响研究
Research on Effect of Blade Tip Clearance and Installation Position of Guide Vane on Flow Field of Axial-flow Fan
摘要
Abstract
In order to research the internal flow field of the rectangular flow channel formed by combination of heat exchanger and axial flow fan,rationally match the characteristics of axial flow fan and the rectangular flow channel and improve the aerodynamic performance of axial flow fan,the characteristics of flow field of axial flow fan were analyzed by changing the radial clearance between the fan cowl and the fan and the distance between hub end face of fan exit and exit end face of the fan cowl and using the numerical simulation method,and the correctness of numerical simulation was verified by experiment.The results show that when the radial clearance between the cowl and the axial flow fan is 2 mm and the distance between hub end face of fan exit and end face of fan cowl is 0 mm,the efficiency is highest relatively,an increase of 82.67% and 55.88% in amplitude,respectively,at the same time,the exit static pressure is biggest relatively when the distance between hub end face of fan exit and end face of fan cowl is 0 mm.关键词
轴流风机/导流罩/叶顶间隙/流场特性/气动性能Key words
axial flow fan/shroud/tip clearance/flow field characteristics/aerodynamic performance分类
机械制造引用本文复制引用
黄海鸿,陆月星..叶顶间隙和导流罩的安装位置对轴流风机流场的影响研究[J].流体机械,2018,46(4):34-39,6.基金项目
国家自然科学基金资助项目(51346004) （51346004）
