Volume 37 Issue 7
Jul.  2011
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Yan Minglei, Wei Baoxi, Xu Xu, et al. Integration of aeroramp injector/gas-portfire igniter insupersonic combustor[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(7): 782-788. (in Chinese)
Citation: Yan Minglei, Wei Baoxi, Xu Xu, et al. Integration of aeroramp injector/gas-portfire igniter insupersonic combustor[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(7): 782-788. (in Chinese)

Integration of aeroramp injector/gas-portfire igniter insupersonic combustor

  • Received Date: 08 Jul 2010
  • Publish Date: 30 Jul 2011
  • A novel hydrocarbon-fuel injection and ignition/flameholding system consisting of aerodynamic ramp(aeroramp) injector and gas-portfire was designed, which was investigated experimentally and numerically to figure out the supersonic flowfield and its combustion. Color schlieren and surface oil-flow visualization pictures were taken in the vicinity of the injectors to obtain a qualitative assessment of the injector flowfields. Results show that the assembly strengthen and elevate the streamwise vortex. Compared to lone aeroramp injector, the mixing efficiency is improved from 60 percent to 75 percent. Wall friction generats most part of the total pressure loss, but the loss produced by aeroramp and gas-portfire is a little. And the gas-portfire works as igniter and flameholder.

     

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