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进气温度和当量比对脉冲爆轰发动机工作过程影响

蒋弢 翁春生

蒋弢, 翁春生. 进气温度和当量比对脉冲爆轰发动机工作过程影响[J]. 航空动力学报, 2015, 30(1): 29-37. doi: 10.13224/j.cnki.jasp.2015.01.005
引用本文: 蒋弢, 翁春生. 进气温度和当量比对脉冲爆轰发动机工作过程影响[J]. 航空动力学报, 2015, 30(1): 29-37. doi: 10.13224/j.cnki.jasp.2015.01.005
JIANG Tao, WENG Chun-sheng. Effect of inlet temperature and equivalence ratio on working process of pulse detonation engine[J]. Journal of Aerospace Power, 2015, 30(1): 29-37. doi: 10.13224/j.cnki.jasp.2015.01.005
Citation: JIANG Tao, WENG Chun-sheng. Effect of inlet temperature and equivalence ratio on working process of pulse detonation engine[J]. Journal of Aerospace Power, 2015, 30(1): 29-37. doi: 10.13224/j.cnki.jasp.2015.01.005

进气温度和当量比对脉冲爆轰发动机工作过程影响

doi: 10.13224/j.cnki.jasp.2015.01.005
基金项目: 

预研基金(9140c300202120c30)

中央高校基本科研业务费专项资金(30920130112007)

详细信息
    作者简介:

    蒋弢(1985-),男,江苏南通人,博士生,主要研究方向为新概念推进技术.

  • 中图分类号: V235.22

Effect of inlet temperature and equivalence ratio on working process of pulse detonation engine

  • 摘要: 为了研究进气温度和当量比对脉冲爆轰发动机工作过程的影响,建立了带简单化学反应的气液两相爆轰欧拉-拉格朗日模型,使用二维时空守恒元与求解元(CE/SE)方法和变步长4阶龙格-库塔法分别求解气液两相爆轰方程.计算结果表明:提高进气温度,能加速液滴雾化、蒸发,缩短燃烧转爆轰距离和时间,但是会降低爆轰波的峰值压力;当量比小于1.1时,增加当量比,能缩短燃烧转爆轰距离和时间,提高爆轰波的峰值压力,加快爆轰波传播速度;当量比大于等于1.1时,增加当量比,能小幅提高爆轰波速传播度和缩短燃烧转爆轰距离和时间,但对爆轰波的峰值压力影响很小.

     

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出版历程
  • 收稿日期:  2013-08-26
  • 刊出日期:  2015-01-28

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