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Journal of Projectiles, Rockets, Missiles and Guidance >

2018 , Vol. 38 >Issue 1: 83 - 88

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2018.01.020

Numerical Study on the Effects of Three-dimensional Parameters on the Mixing Efficiency of Cantilevered Ramp Injector

  • GAO Feng ,
  • XIA Xuefeng ,
  • ZHANG Han
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  • Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China

Received date: 2017-04-27

  Online published: 2025-05-28

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Abstract

In order to analyze the impact of cantilevered ramp configuration on the mixing effect of the fuel in scramjet combustor and the improvement effect of penetration depth of jet, the numerical method was used to simulate the flow field of a cantilever ramp injector with different dimensions. The results show that the increase of the ramp compression angle has little impact on mixing effect, but it can increase the jet penetration depth and bring about a greater total pressure loss; The increase of the angle of sweepback can enhance the blending, but also increases the total pressure loss and decreases the penetration depth; The appropriate reduction of cantilever width within a certain range can effectively increase the penetration depth of near field and the mixing efficiency of far field, and reduce the total pressure loss.

Key words： scramjet combustor; cantilevered ramp injector; mixing efficiency; numerical study

Cite this article

GAO Feng , XIA Xuefeng , ZHANG Han . Numerical Study on the Effects of Three-dimensional Parameters on the Mixing Efficiency of Cantilevered Ramp Injector[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2018 , 38(1) : 83 -88 . DOI: 10.15892/j.cnki.djzdxb.2018.01.020

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