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双燃烧室冲压发动机直连式实验与数值仿真

谭建国 吴继平 王振国

谭建国, 吴继平, 王振国. 双燃烧室冲压发动机直连式实验与数值仿真[J]. 航空动力学报, 2013, 28(7): 1675-1680.
引用本文: 谭建国, 吴继平, 王振国. 双燃烧室冲压发动机直连式实验与数值仿真[J]. 航空动力学报, 2013, 28(7): 1675-1680.
TAN Jian-guo, WU Ji-ping, WANG Zhen-guo. Direct-connect experiment and numerical simulation on dual-combustor ramjet[J]. Journal of Aerospace Power, 2013, 28(7): 1675-1680.
Citation: TAN Jian-guo, WU Ji-ping, WANG Zhen-guo. Direct-connect experiment and numerical simulation on dual-combustor ramjet[J]. Journal of Aerospace Power, 2013, 28(7): 1675-1680.

双燃烧室冲压发动机直连式实验与数值仿真

基金项目: 国家自然科学基金(51076164,11272351)

Direct-connect experiment and numerical simulation on dual-combustor ramjet

  • 摘要: 通过直连式实验和数值仿真,对双燃烧室冲压发动机的流场结构和性能进行了研究.数值仿真采用了半全局多步化学反应机理,计算的压力分布和实验结果基本一致,计算结果表明:中心高温富油燃气与边区空气在混合层内快速反应,热力喉道出现在约0.9m处,出口处的燃烧效率达到了较高水平.提出了结合直连式实验和数值计算的性能估算方法,结果表明:双燃烧室发动机在马赫数为4,高度为17km状态时具有较高的性能,当燃油当量比为0.9时,发动机内推力为8.3kN,内推力比冲为12.29kN·s/kg,更高的燃油当量比将导致超燃进气道不起动.

     

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出版历程
  • 收稿日期:  2012-06-21
  • 刊出日期:  2013-07-28

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