A method for measuring 3-D unsteady flow at exits of a compressor rotor using combined probes

被引：0
|
作者：
Ma H. [1 ,2 ]
He X. [3 ]
Shan X. [3 ]
Yao [3 ]
机构：
[1] School of Energy and Power Engineering, Beihang University, Beijing
[2] Research Institute of Aero-Engine, Beihang University, Beijing
[3] Hunan Aviation Powerplant Research Institute, Aero Engine Corporation of China, Hunan, Zhuzhou
来源：
Hangkong Dongli Xuebao/Journal of Aerospace Power | 2022年 / 37卷 / 10期
关键词：
3-D unsteady flow; combined probes; high-response pressure probe; multistage compressor; phase-locked acquisition technique;
D O I：
10.13224/j.cnki.jasp.20220276
中图分类号：
学科分类号：
摘要：
A method for measuring 3-D unsteady flow at an exit of a transonic multistage compressor rotor was presented by using combined high-response pressure probes consisting of a cylinder 1-hole probe and a tip-wedged 1-hole probe，which were calibrated in a wind tunnel. The probes were put in the inter-stage at the same axial and radial but different tangential positions with the help of two traverse mechanisms， and unsteady pressure data were obtained utilizing a phase-locked technique at different angular positions. Distributions of 3-D flow parameters were obtained through data processing. Result showed that the combined probes were characterized by small size， high frequency， wide measurement range and weak interrupt compared with other current 3-D high-response probes， while the method can obtain flow pitch angle and more accurate total pressure，static pressure and Mach number compared with 2-D high-response probe techniques. The combined-probe technique provides a feasible 3-D flow measurement method for flow diagnosis in small multistage compressors. © 2022 BUAA Press. All rights reserved.
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页码：2253 / 2260
页数：7
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