Improvement of Criterion for Prediction of Axial Compressor Corner Stall and Its Experimental Verification

被引:0
|
作者
Liu B.-J. [1 ,2 ,3 ]
Qiu Y. [1 ]
Yu X.-J. [1 ,2 ,3 ]
An G.-F. [1 ,2 ,3 ]
机构
[1] School of Energy and Power Engineering, Beihang University, Beijing
[2] National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics, School of Energy and Power Engineering, Beihang University, Beijing
[3] Collaborative Innovation Center of Advanced Aero-Engine, Beijing
来源
关键词
Axial compressor; Corner separation; Corner stall; Criterion for the prediction of corner stall;
D O I
10.13675/j.cnki.tjjs.190106
中图分类号
学科分类号
摘要
Endwall corner separation is a typical secondary flow in axial compressor. With the increase of blade loading, the corner separation flow could develop into corner stall flow, which could cause serious flow blockage and loss in compressor blade passage and should be avoided during the compressor design procedure. In order to predict the corner stall flow in compressors, some criterions has been developed, which are mainly based on two-dimensional airfoil data. The endwall flow is strong three-dimensional in real compressor environment. A new criterion is developed accordingly in the present paper. The newly developed criterion was verified by experimental data obtained from low-speed compressor tests. The results showed that the existed criterions do not work well in real compressor environment and the newly developed criterion could accurately predict the stator hub corner stall in compressors with a critical value of D=0.405±0.02. In addition, the newly developed D parameter shows related correlation to the flow loss and blockage in compressor stators. © 2020, Editorial Department of Journal of Propulsion Technology. All right reserved.
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页码:527 / 536
页数:9
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