旋转扰动波对轴流压气机气动稳定性影响

毛智明; 胡骏; 张环; 严伟

doi:10.13224/j.cnki.jasp.2015.09.027

旋转扰动波对轴流压气机气动稳定性影响

doi: 10.13224/j.cnki.jasp.2015.09.027

南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室, 南京 210016

详细信息

作者简介:
毛智明(1990-),男,江苏扬州人,硕士生,主要从事叶轮机气体动力学研究.

中图分类号: V231.3
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出版历程
- 收稿日期: 2014-03-11
- 刊出日期: 2015-09-28

Effects of rotating disturbance on aerodynamics stability of axial-flow compressor

Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 利用旋转扰动波发生器在一台低速二级轴流压气机上开展实验,研究其旋转频率、扰动扇区角度以及产生的低压区个数对压气机气动稳定性的影响,发现不同的扰动扇区角度和低压区个数下对压气机稳定裕度影响最大的“危险频率”不变.基于M-G模型发展出考虑旋转扰动波影响的二维不可压缩模型,该模型可计算不同扰动扇区角度及低压区个数的旋转扰动波对压缩系统稳定性及动态失速特性的影响,对实验压气机进行建模分析,发现旋转扰动波会诱发模态波的产生,且频率越接近旋转失速团的传播频率对压缩系统稳定裕度的影响越大.
- 压气机 /
- 稳定性 /
- 旋转扰动波 /
- 旋转失速 /
- 失速起始 /
- M-G模型
Abstract: Experiments were carried out on a two-stage low-speed axial-flow compressor with a newly designed rotating disturbance generator, so as to study the influences of rotating frequency, disturbed sector and the number of disturbed cells on the compressor aerodynamics stability. The experiments show that the compressor experienced significant degradation in its stall margin when the disturbance rotated at the “dangerous frequency”, which didn't change at different disturbed sectors and cells. A two-dimensional incompressible model considering rotating disturbance was developed based on M-G model. This model can calculate the influence of rotating disturbance with different disturbed sectors and cells on the aerodynamic stability and stall process of the compression system. When analyzing by building a mathematical model for the experiment compressor and employing the two-dimensional incompressible model, it was found that the rotating disturbance will induce the modal wave and affect the compression system stall margin more severely if the rotating frequency was close to the rotating stall propagate frequency.
- compressor /
- stability /
- rotating disturbance /
- rotating stall /
- stall inception /
- M-G(Moore-Greitzer) model

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参考文献(18)

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