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当量比和间隙尺寸对爆震波传播过程的影响

张超 唐豪 李明 Sudip Bhattrai

张超, 唐豪, 李明, Sudip Bhattrai. 当量比和间隙尺寸对爆震波传播过程的影响[J]. 航空动力学报, 2012, 27(9): 1948-1957.
引用本文: 张超, 唐豪, 李明, Sudip Bhattrai. 当量比和间隙尺寸对爆震波传播过程的影响[J]. 航空动力学报, 2012, 27(9): 1948-1957.
ZHANG Chao, TANG Hao, LI Ming, Sudip Bhattrai. Effects of equivalence ratio and gap size on the propagation behavior of detonations[J]. Journal of Aerospace Power, 2012, 27(9): 1948-1957.
Citation: ZHANG Chao, TANG Hao, LI Ming, Sudip Bhattrai. Effects of equivalence ratio and gap size on the propagation behavior of detonations[J]. Journal of Aerospace Power, 2012, 27(9): 1948-1957.

当量比和间隙尺寸对爆震波传播过程的影响

基金项目: 国家自然科学基金(50776045); 江苏省普通高校研究生科研创新计划(CXLX11_0194)

Effects of equivalence ratio and gap size on the propagation behavior of detonations

  • 摘要: 为探索微型脉冲爆震发动机推进系统的可行性,进行了微空间内爆震极限特性的研究.通过对预混氢气/氧气爆震火焰在平板狭缝中的传播过程进行测量,分析了爆震波压力、速度随当量比和间隙尺寸的变化趋势,发现在极限范围外,来自稳流段的爆震波都能在间隙内通过压力和速度的自我调整后达到稳定状态,调整过程所需的距离随间隙尺寸减小而增长.根据爆震波速度衰减的定义,给出了激波和火焰锋面速度沿间隙通道方向的变化特点,观察到了微尺寸下爆震波的4种传播模式:稳定爆震波、准稳定爆震波、低速爆震波和非爆震波.

     

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出版历程
  • 收稿日期:  2011-10-31
  • 刊出日期:  2012-09-28

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