Volume 34 Issue 6
Jun.  2019
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Aerodynamic performance influence of propeller slipstreamon engine intake[J]. Journal of Aerospace Power, 2019, 34(6): 1322-1333. doi: 10.13224/j.cnki.jasp.2019.06.015
Citation: Aerodynamic performance influence of propeller slipstreamon engine intake[J]. Journal of Aerospace Power, 2019, 34(6): 1322-1333. doi: 10.13224/j.cnki.jasp.2019.06.015
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Aerodynamic performance influence of propeller slipstreamon engine intake

doi: 10.13224/j.cnki.jasp.2019.06.015
  • Received Date: 2018-10-31
  • Publish Date: 2019-06-28
    Abstract
  • For the integrated configuration of propeller/nacelle/intake,numerical simulation was carried out by using multiple reference frame (MRF) method and slip grid unsteady method, and the coupled flow field simulation of the internal and external flows of propeller/nacelle/intake integrated was realized. The aerodynamic performance influence of propeller slipstream on the intake under different working conditions was researched, and compared with the performance of the intake without the paddle configuration. Finally, the reason for the increase of the total pressure after the propeller paddle was explained by numerical analysis. The results show that the result of the multiple reference frame method is consistent with the time-average parameters result of the slip grid unsteady method, the multiple reference system method can be used to calculate the aerodynamic performance parameters of the propeller and the intake port. The work of the propeller increases the total pressure recovery coefficient of the intake port. The greater propeller speed means the greater increment of the total pressure recovery coefficient, and the propeller slipstream significantly increases the inlet port distortion index. The formula of the relationship between the total pressures before and after the paddle has been derived by numerical analysis, and compared with the simulated value, with the error within 3%.

     

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