Volume 29 Issue 10
Oct.  2014
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YANG Lin, WANG Si-chen, LIN Feng, LI Ji-chao, NIE Chao-qun. Method of dynamic pressure measurement based on semi-infinite pressure tube effect[J]. Journal of Aerospace Power, 2014, (10): 2457-2463. doi: 10.13224/j.cnki.jasp.2014.10.024
Citation: YANG Lin, WANG Si-chen, LIN Feng, LI Ji-chao, NIE Chao-qun. Method of dynamic pressure measurement based on semi-infinite pressure tube effect[J]. Journal of Aerospace Power, 2014, (10): 2457-2463. doi: 10.13224/j.cnki.jasp.2014.10.024
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Method of dynamic pressure measurement based on semi-infinite pressure tube effect

doi: 10.13224/j.cnki.jasp.2014.10.024

  • 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: 2013-07-05
  • Publish Date: 2014-10-28
    Abstract
  • The amplitude-frequency characteristic of dynamic pressure signal through the semi-infinite and finite pressure tube was investigated, also its relationship with the shape of the inner diameter of the tube. With a semi-infinite pressure tube, a time-resolved total pressure probe with a Kiel structure was designed, and used to measure large angle inflow total pressure and calibrate its dynamic transfer function. The measurement results of the axial compressor rotor wake fields show that the semi-infinite pressure dynamic probe could get large gradient total pressure field, such as rotor wake and blade end flow. For design of the dynamic probe with pressure tube, both pressure tube diameter change and bending could attenuate signal energy, while semi-infinite pressure tube can availably keep dynamic pressure signal energy and decrease resonance effect.

     

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