低速离心压气机的全工况数值模拟和校核  

THE NUMERICAL SIMULATION AND VERIFICATION OF LOW-SPEED CENTRIFUGAL COMPRESSOR IN WHOLE FLOW-RATE RANGE

作　　者：耿少娟[1,2] 戴冀[1] 张宏武[1] 黄伟光[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100080 [2]中国科学院研究生院

出　　处：《工程热物理学报》2005年第z1期81-84,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50276059)

摘　　要：本文选用不同的计算模型和网格数目在全流量域对NASA低速离心压气机进行了数值模拟,通过与实验数据的对比检验了计算结果的精度,为具有无叶扩压器结构的低压离心压气机确定了合理的计算方案。同时通过计算结果的观察和对比,分析了小流量下叶轮内部流场的部分变化特征。The CFD simulation has been accomplished for the NASA low-speed centrifugal compressor in whole flow-rate range by selecting different numerical models and numbers of grids. The comparison between numerical and experimental results shows that the computation is comparatively accurate. And a proper numerical method is ascertained for CFD simulation of low-speed centrifugal compressor with vaneless diffuser. At the same time, some characters of the flow field in the impeller are analyzed under the condition of small flow rate near stall.

关 键 词：数值模拟 定常 离心压气机 

分 类 号：O354.2[理学—流体力学]