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气相爆轰波胞格尺度与点火延迟时间关系研究

张薇 刘云峰 姜宗林

张薇, 刘云峰, 姜宗林. 气相爆轰波胞格尺度与点火延迟时间关系研究[J]. 力学学报, 2014, 46(6): 977-981. doi: 10.6052/0459-1879-14-046
引用本文: 张薇, 刘云峰, 姜宗林. 气相爆轰波胞格尺度与点火延迟时间关系研究[J]. 力学学报, 2014, 46(6): 977-981. doi: 10.6052/0459-1879-14-046
Zhang Wei, Liu Yunfeng, Jiang Zonglin. STUDY ON THE RELATIONSHIP BETWEEN IGNITION DELAY TIME AND GASEOUS DETONATION CELL SIZE[J]. Chinese Journal of Theoretical and Applied Mechanics, 2014, 46(6): 977-981. doi: 10.6052/0459-1879-14-046
Citation: Zhang Wei, Liu Yunfeng, Jiang Zonglin. STUDY ON THE RELATIONSHIP BETWEEN IGNITION DELAY TIME AND GASEOUS DETONATION CELL SIZE[J]. Chinese Journal of Theoretical and Applied Mechanics, 2014, 46(6): 977-981. doi: 10.6052/0459-1879-14-046

气相爆轰波胞格尺度与点火延迟时间关系研究

doi: 10.6052/0459-1879-14-046
基金项目: 国家自然科学基金资助项目(31021002).
详细信息
    作者简介:

    张薇,博士研究生,主要研究方向:爆轰物理.E-mail:zhangwei@imech.ac.cn

  • 中图分类号: O381

STUDY ON THE RELATIONSHIP BETWEEN IGNITION DELAY TIME AND GASEOUS DETONATION CELL SIZE

Funds: The project was supported by the National Natural Science Foundation of China (31021002).
  • 摘要: 讨论点火延迟时间和爆轰波胞格尺度的内在关系,将点火延迟时间作为特征参量来模拟胞格尺度. 分别对两个总包单步化学反应模型和一个基元反应模型的点火延迟时间进行了数值模拟研究. 对于满足当量比的氢气/空气混合气体,分析了不同初始压力下点火延迟时间随初始温度的变化关系. 研究表明:总包单步反应模型的点火延迟时间不随压力变化,且与初始温度呈线性关系. 基元反应模型的点火延迟时间随压力变化,而且存在理论上的S 型曲线,但是在拐点区域和低温区域与CHEMKIN 计算的结果相差1~3 个量级. 现有模型模拟的胞格尺度普遍偏小,其相应的点火延迟时间也偏小,胞格尺度与点火延迟时间具有正相关性. 入射激波后的气体的点火延迟时间与三波点的运动周期一致,是定量化模拟胞格的关键因素.

     

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  • 被引次数: 0
出版历程
  • 收稿日期:  2014-05-03
  • 修回日期:  2014-08-21
  • 刊出日期:  2014-11-18

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