PIV Investigation of Secondary Flows in a Low-Speed Axial Compressor Rotor Passage

摘要：

In order to research the distribution and the occurring mechanism of the axial compressors rotor passage secondary flows, the S3 surface flow fields of a low-speed axial compressor have been investigated experimentally and numerically. Particle image velocimetry (PIV) has been adopted in the experiment. The PIV system which appropriates for S3 surface flow fields measurement in the compressor rotor passage has been developed. S3 surface fields of different rotating speeds and mass flow conditions have been measured, and numerical investigation has also been done according to the experiment. As a result, the numerical results agree well with the experiment results;secondary flows are detected in the rotor passage;at the same rotating speed, secondary flow region moves from the shroud towards the hub as mass flow decreases;at the same throttle valve angle, the flow fields vary little with different rotating speeds, except that the flow velocity increases as the rotating speed increases.

关键词： axial compressor secondary flow particle image velocimetry los

作者: CAO Zhi-yuan LIU Bo

作者单位: School of Power and Energy, North western Polytechnical University, Xian, China

会议类型: 国际会议

会议名称: 4th International Symposium on Jet Propulsion and Power Engineering(第四届喷气推进与动力工程国际会议 ISJPPE2012)

会议地点: 西安

会议语种:英文

页码: 118-123

在线出版日期: 2012-09-10（万方平台首次上网日期，不代表论文的发表时间）