流体机械2012，Vol.40Issue(11)：15-20,40,7.DOI:10.3969/j.issn.1005-0329.2012.11.004
径向进气室对离心压缩机气动特性影响的研究
Influences of the Radial Inlet Chamber on the Characteristics of a Centrifugal Compressor
摘要
Abstract
A numerical simulation is presented to investigate the performance and the flow field of a centrifugal compressor with a radial and an axial inlet chamber respectively, in order to study the effect of the radial inlet chamber. Results indicate: (1) the non - uniform flow field of the impeller inlet is mainly caused by the radial inlet chamber, and the stage efficient shows 3% reduction in the designed operating point compared to the axial inlet chamber; ( 2 ) of the radial inlet chamber, different channel of the impeller bears different attack angle, while of the axial inlet chamber, the attach angle of each channel is almost the same due to circumferential periodicity; the averaged attack angle is 1.4smaller than the axial in-taking compressor, meanwhile, the impeller has a negative influence on the flow field inside the radial inlet chamber, it aggravates the non-uniformity of the flow field.关键词
离心压缩机/径向进气室/级性能/数值研究Key words
centrifugal compressor/ radial inlet chamber/ stage performance/ numerical simulation分类
机械制造引用本文复制引用
董帆,于跃平,朱晓农..径向进气室对离心压缩机气动特性影响的研究[J].流体机械,2012,40(11):15-20,40,7.基金项目
国家重点基础研究发展计划项目资助(973计划,2010CB736006) （973计划,2010CB736006）
安徽省科技攻关项目(11010202156) （11010202156）
