流体机械2016，Vol.44Issue(11)：36-40,5.DOI:10.3969/j.issn.1005-0329.2016.11.008
离心风机叶轮径向间隙对其泄漏及性能的影响研究
Influence of the Impeller’s Radial Clearance on Leakage and Performance of Centrifugal Fan
潘华辰 1郑灵超 1花聪聪 1田晓庆1
作者信息
- 1. 杭州电子科技大学，浙江杭州 310018
- 折叠
摘要
Abstract
Based on the clearance of centrifugal fans,the influence of different turbulence models on the numerical results is studied and compared with the experimental results,the error between SST model and the experimental are found to be less than 3%.Besides,using the model to simulate the gap for 4 mm,6 mm and 8 mm,contrast the flow field characteristics of the fan.The results show that with increasing gas flow rate,leakage increased quantities in the presence of a particular inflection point,the in-flection point of leakage of slow growth,after the inflection point leakage increased dramatically.The radial gap is bigger,under the same flux leakage quantity is bigger,but before the inflexion of the gap size has little effect on the leakage.With increase of the ra-dial clearance,leakage increase trend more obvious.In addition,it is verified that the radial clearance can only adjust the static pressure efficiency of the fan,but can’t change the static pressure efficiency trend.关键词
离心式风机/径向间隙/泄漏量/静压效率Key words
centrifugal fan/radial clearance/leakage/static pressure efficiency分类
机械制造引用本文复制引用
潘华辰,郑灵超,花聪聪,田晓庆..离心风机叶轮径向间隙对其泄漏及性能的影响研究[J].流体机械,2016,44(11):36-40,5.
