压气机失速过程中的壁面压力分布特征

doi:10.7527/S1000-6893.2013.0055

Abstract

Abstract:

To describe the characteristics of stall cells visually, an experimental investigation is performed with the method of casing static pressure countour analysis to study the flow field at the rotor tip for a single-stage axial compressor. The results indicate that the method could observe the developing process and influence area of the stall cells visually, estimate the number precisely and the rotating speed approximately. The frequency analysis validates the veracity of the method. This method finds that there is one cell which holds 4/5 of the passage of the compressor when a stall occurs, and then the stall cell splits to two and rotates faster by opening the valve.

Key words: compressor, process of stall, rotor tip, dynamic pressure, frequency analysis

CLC Number:

V231.3

LUO Zhihuang, LI Jun, YANG Pu, WU Yun, LIU Dongjian, LI Fanyu. Characteristics of Casing Static Pressure During Compressor Stall[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013, 34(9): 2092-2099.

References

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Characteristics of Casing Static Pressure During Compressor Stall

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