Volume 31 Issue 6
Jun.  2016
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Article Navigation >  Journal of Aerospace Power  > 2016  >  31(6): 1343-1350
GUO Xiao-jing, ZHENG Dian-feng, YU Yong, ZHANG Hui-qiang. Influence of low temperature plasma discharge zone length on ignition initiating[J]. Journal of Aerospace Power, 2016, 31(6): 1343-1350. doi: 10.13224/j.cnki.jasp.2016.06.009
Citation: GUO Xiao-jing, ZHENG Dian-feng, YU Yong, ZHANG Hui-qiang. Influence of low temperature plasma discharge zone length on ignition initiating[J]. Journal of Aerospace Power, 2016, 31(6): 1343-1350. doi: 10.13224/j.cnki.jasp.2016.06.009
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Influence of low temperature plasma discharge zone length on ignition initiating

doi: 10.13224/j.cnki.jasp.2016.06.009

  • 1. College of Engineering, Peking University, Beijing 100871, China;

  • 2. School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China;

  • 3. School of Aerospace Engineering, Tsinghua University, Beijing 100084, China

  • Received Date: 2014-09-23
  • Publish Date: 2016-06-28
    Abstract
  • For the fixed length of low temperature plasma discharge zone with the same discharge zone gap, the volume size's influences on pulse detonation engine ignition initiating were studied. Propane was taken as fuel, air and pure oxygen as oxidant. The chemical reaction kinetics mechanism was fully considered in detail, and the low temperature plasma discharge zones were equivalent to high temperature and high pressure fire nucleus. Numerical simulations of the ignition initiating process were carried out by Fluent software. The lengths of the discharge zone of 20, 40, 60mm was comparatively analyzed. Results show that the low temperature plasma discharge zone equivalent to high temperature and high pressure fire nucleus is feasible, and complete ignition initiating process can be got; different lengths of discharge zone have strong influences on the initial flame form, the flame propagation speed and deflagration to detonation transition (DDT) time, but little influence on the detonation wave peak pressure.

     

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