Volume 29 Issue 12
Dec.  2014
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Article Navigation >  Journal of Aerospace Power  > 2014  >  29(12): 2957-2964
WANG Si-chen, LI Ji-chao, LIN Feng, NIE Chao-qun. Three-dimensional time-resolved measurements on rotor wake of low-speed axial compressor[J]. Journal of Aerospace Power, 2014, 29(12): 2957-2964. doi: 10.13224/j.cnki.jasp.2014.12.024
Citation: WANG Si-chen, LI Ji-chao, LIN Feng, NIE Chao-qun. Three-dimensional time-resolved measurements on rotor wake of low-speed axial compressor[J]. Journal of Aerospace Power, 2014, 29(12): 2957-2964. doi: 10.13224/j.cnki.jasp.2014.12.024
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Three-dimensional time-resolved measurements on rotor wake of low-speed axial compressor

doi: 10.13224/j.cnki.jasp.2014.12.024

  • 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

  • Received Date: 2013-08-12
  • Publish Date: 2014-12-28
    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.

     

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