低速轴流压气机转子尾迹三维动态测量

王偲臣; 李继超; 林峰; 聂超群

doi:10.13224/j.cnki.jasp.2014.12.024

低速轴流压气机转子尾迹三维动态测量

doi: 10.13224/j.cnki.jasp.2014.12.024

1. 中国科学院大学物理学院, 北京 100049;
2. 中国科学院工程热物理研究所先进能源动力重点实验室, 北京 100190

基金项目:

国家自然科学基金(51176188)

详细信息

作者简介:
王偲臣(1985-), 男, 河南商丘人, 博士生, 主要从事压气机流动失稳机理及控制策略研究.

中图分类号: V231.3
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出版历程
- 收稿日期: 2013-08-12
- 刊出日期: 2014-12-28

Three-dimensional time-resolved measurements on rotor wake of low-speed axial compressor

1. School of Physics, University of Chinese Academy of Sciences, Beijing 100049, China;
2. Key Laboratory of Advanced Energy and Power, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China

摘要

摘要: 对一台低速轴流压气机的转子尾迹进行了三维动态测量,采用锁相平均、方均根和功率谱密度等分析方法对低速轴流压气机转子在节流过程中尾迹流场的稳态和动态特征进行了研究.结果显示:在绝对坐标系下,转子尾迹有高总压和高方均根特征,且在不同叶高的强度不同;转子尾迹与主流的掺混作用导致平均总压升系数的快速衰减;功率谱密度分析表明,在接近失速点时,转子尾迹90%叶高以上出现0.5倍叶片通过频率的特征频带且其功率随着流量减小而增大.
- 轴流压气机 /
- 转子尾迹 /
- 三维动态测量 /
- 尾迹总压衰减 /
- 压气机失速
Abstract: Three-dimensional time-resolved measurements were conducted on the rotor wake of a low-speed axial compressor. Methods such as phase lock average, root mean square and power spectral density were used to analyze the steady and dynamic characteristics of the rotor wake of a low-speed axial compressor in throttle process. The results show that the rotor wake has high total pressure and high root mean square under absolute frame, and the wake intensity varies along spanwise direction. The averaged total pressure rise coefficient decreases sharply because of the interaction between the rotor wake and main flow. Power spectral density analysis shows that as the rotor running is close to stall, a frequency band around 0.5 blade passing frequency appears in the region over 90% span and its power increases as the mass flow decreases.
- axial compressor /
- rotor wake /
- three-dimensional time-resolved measurements /
- wake total pressure dissipation /
- compressor stall

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参考文献(22)

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