Volume 37 Issue 5
May  2022
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Article Navigation >  Journal of Aerospace Power  > 2022  >  37(5): 1020-1029
WEI Wei, REN Siyuan, MA Husheng, LI Xuechen, ZONG Youhai. Experiment of Reynolds number effects on subsonic compressor plane cascade[J]. Journal of Aerospace Power, 2022, 37(5): 1020-1029. doi: 10.13224/j.cnki.jasp.20210252
Citation: WEI Wei, REN Siyuan, MA Husheng, LI Xuechen, ZONG Youhai. Experiment of Reynolds number effects on subsonic compressor plane cascade[J]. Journal of Aerospace Power, 2022, 37(5): 1020-1029. doi: 10.13224/j.cnki.jasp.20210252
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Experiment of Reynolds number effects on subsonic compressor plane cascade

doi: 10.13224/j.cnki.jasp.20210252

  • Aerospace Technology Institute， China Aerodynamics Research and Development Center，Mianyang Sichuan 621000，China

  • Received Date: 2021-05-19
  • Publish Date: 2022-05-28
    Abstract
  • The flow characteristics of the UKG030.3 compressor airfoil surface and the wake area were investigated in details with the varying Reynolds number，Mach number and the angle of incidences by means of decreasing the pressure of the test chamber.The surface isentropic Mach number and the total pressure loss coefficient of the airfoil with the changing Reynolds number were concluded.The experimental results showed that the whole developing process of the separation bubbles，which exhibited appearing，extending and bursting processes，came into sight behind the maximum Mach number location of the airfoil suction side with the test chamber pressure and Reynolds number decreasing.When the separation bubbles became long，the width of the wake area and the total pressure loss coefficient increased radically.However，the critical Reynolds number associated with the loss bursting was inconsistent under different conditions.When the total pressure loss coefficient and Reynolds number were divided by the corresponding coefficients of the atmosphere condition，it revealed that the location of the total pressure loss ratio bursting was near 0.4 times the ratio of the chord Reynolds number.

     

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