轴流压缩系统动态失速的简化模型

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1997, Vol. 18 ›› Issue (2): 207-209.

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NEW SIMPLIFIED MODEL OF POST STALL TRANSIENTS IN AXIAL COMPRESSION SYSTEMS

Hu Jun

Power Engineering Department, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016

Received:1996-04-15 Revised:1996-09-16 Online:1997-04-25 Published:1997-04-25

Abstract

Abstract:

Based on the theory developed by Moore and Greitzer, a new simplifying approximation, which takes into account the influence of higher harmonics of rotating waves, is proposed to get a simplified model of post stall transients in axial compression systems. This model consists of a set of three simultaneous nonlinear first order partial differential equations.It is shown that the further investigations of post stall behavior for different response modes of instabilities (rotating stall and/or surge), recoverability from rotating stall or surge, and the effect of compression system parameters on them can be carried out by this model.

Key words: compression system, rotating stall, surge, recover ability

CLC Number:

V231. 3

Hu Jun. NEW SIMPLIFIED MODEL OF POST STALL TRANSIENTS IN AXIAL COMPRESSION SYSTEMS[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1997, 18(2): 207-209.

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NEW SIMPLIFIED MODEL OF POST STALL TRANSIENTS IN AXIAL COMPRESSION SYSTEMS

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