流体机械2016，Vol.44Issue(12)：11-17,49,8.DOI:10.3969/j.issn.1005-0329.2016.12.003
机匣处理对轴流风机性能影响的数值研究
Simulation of Casing Treatment Effect on the Performance of an Axial Flow Fan
摘要
Abstract
In order to investigate the effect of casing treatment on aerodynamic performance of axial fans,the performance of the variable pitch axial fan of type OB-84 with different casing treatment is numerically simulated by Fluent. The results reveal that an apparent impact of the different schemes of casing treatment is observed;the total pressure rise and efficiency are enhanced at the design condition and large flow rate,while manifest the opposite varations at small flow rate;the static pressure distribution in the suction and pressure surfaces is altered by casing treatment,resulting in the reduction of tip leakage flow and consequent im-provement of the flow capacity in the middle and upper blade;a comparison of different casing treatments shows that the circular groove structure presents the most notable enhancement of fan performance.关键词
轴流风机/机匣处理/数值模拟/气动性能Key words
axial flow fan/casing treatment/numerical simulation/aerodynamic performance分类
机械制造引用本文复制引用
崔建光,叶学民,李春曦..机匣处理对轴流风机性能影响的数值研究[J].流体机械,2016,44(12):11-17,49,8.基金项目
中央高校基本科研业务费专项基金项目(13MS98) （13MS98）
河北省自然科学基金资助项目(E2012502016) （E2012502016）
