首页|期刊导航|热科学学报（英文版）|Numerical Simulation of Rotating Stall in a Centrifugal Compressor with Vaned Diffuser
热科学学报（英文版）2007，Vol.16Issue(2)：115-120,6.
Numerical Simulation of Rotating Stall in a Centrifugal Compressor with Vaned Diffuser
Numerical Simulation of Rotating Stall in a Centrifugal Compressor with Vaned Diffuser
摘要
Abstract
This paper reports a numerical study on the process from normal operating conditions to rotating stall in a centrifugal compressor with vaned diffuser. The purpose is to better understand the flow characteristics near stall point under the interactions between centrifugal impeller and vaned diffuser. Numerical results show that under certain conditions just preceding stall point the tip leakage vortex begins to fluctuate at roughly half of the blade passing frequency. This phenomenon is similar to rotating instability in axial compressors. With the flow rate reduced further the impeller stalls and five stall cells propagating at a frequency of 85 percent of impeller rotation speed are found.关键词
centrifugal compressor/rotating stall/tip leakage flow/unsteadyKey words
centrifugal compressor/rotating stall/tip leakage flow/unsteady分类
数理科学引用本文复制引用
Weiguang Huang,Shaojuan Geng,Junqiang Zhu,Hongwu Zhang..Numerical Simulation of Rotating Stall in a Centrifugal Compressor with Vaned Diffuser[J].热科学学报（英文版）,2007,16(2):115-120,6.基金项目
This work was supported by National Natural Science Forndation of China with project No.50276059. （）
