Volume 33 Issue 1
Jan.  2018
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Effect of cavity on liquid jet penetration in supersonic crossflow[J]. Journal of Aerospace Power, 2018, 33(1): 232-238. doi: 10.13224/j.cnki.jasp.2018.01.028
Citation: Effect of cavity on liquid jet penetration in supersonic crossflow[J]. Journal of Aerospace Power, 2018, 33(1): 232-238. doi: 10.13224/j.cnki.jasp.2018.01.028

Effect of cavity on liquid jet penetration in supersonic crossflow

doi: 10.13224/j.cnki.jasp.2018.01.028
  • Received Date: 2016-06-06
  • Publish Date: 2018-01-28
  • An experimental investigation on the penetration of cavity upstream liquid jet was conducted with high speed camera. Experiments of plate jet and cavity jet were performed on the different conditions of jet positions and momentum flux ratios to investigate the influence of the cavity on the jet penetration. Results indicated that the jet penetration decreased at the inlet of the cavity and the jet boundary bent to the cavity because of the entrainment of the cavity. Jet penetration increased at the outlet of the cavity due to the shear layer impinging the cavity outlet edge, forming a high pressure field. The decrease of momentum flux ratio led to a strong cavity enterainment. The penetration decreased to the lowest at the cavity front edge when the jet position was 3D(where D is the cavity depth).

     

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