Volume 28 Issue 6
Jun.  2013
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Article Navigation >  Journal of Aerospace Power  > 2013  >  28(6): 1313-1321
LIU Yuan, JIN Zhi-guang, ZHANG Kun-yuan, NAN Xiang-jun. Parameters analysis of adaptive pressure relief slot in hypersonic inlet[J]. Journal of Aerospace Power, 2013, 28(6): 1313-1321.
Citation: LIU Yuan, JIN Zhi-guang, ZHANG Kun-yuan, NAN Xiang-jun. Parameters analysis of adaptive pressure relief slot in hypersonic inlet[J]. Journal of Aerospace Power, 2013, 28(6): 1313-1321.
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Parameters analysis of adaptive pressure relief slot in hypersonic inlet

  • College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

  • Received Date: 2012-06-15
  • Publish Date: 2013-06-28
    Abstract
  • In order to improve self-starting performance of the fixed-geometry inlet at low Mach number,a technology of self-adaptive pressure relief slot was proposed.The law about the location,direction and effective area of single adapted pressure relief slot was studied with a high performance two-dimensional hypersonic inlet utilizing the technology of numerical simulation.The result shows that:the slot has little influence on the model inlet,and the total pressure recovery ranges around 2%;the slot located downstream the cowl shock wave has large outgassing rate,which will increase as the angle descends and the effective area ascends.The outgassing rate of the adapted pressure relief slot is just 50% compared with normal slot under the same condition.It will drop as the Mach number increases,approaching self-close state at high Mach number condition.

     

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