EI、Scopus 收录
中文核心期刊
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

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

doi: 10.6052/0459-1879-14-046
Funds:  The project was supported by the National Natural Science Foundation of China (31021002).
  • Received Date: 2014-05-03
  • Rev Recd Date: 2014-08-21
  • Publish Date: 2014-11-18
  • In this paper, the intrinsic relationships between ignition delay times and the detonation cell size are analyzed, simulated from two one-step chemical kinetic models and one detailed chemical kinetic model. Ignition delay time for mixtures of hydrogen and air at 0.1MPa and 1.01MPa over the temperature range 800K to 1500K is investigated. The results demonstrate that the ignition delay time for one-step chemical kinetic model is independent of pressure, and linearly correlated with the initial temperature. The ignition delay time for the detailed chemical kinetic model is dependent of pressure, and is not linearly correlated with the initial temperature. However, in the inflection zone and the low temperature zone, the CFD results are 3 orders of magnitude smaller than the theoretical values. The CFD values of the ignition delay time differ from the theoretical ones by a factor as large as 103. The detonation cell size simulated by all the chemical models is smaller than the experimental results, and the ignition delay time is proportional to the cell size. The detonation simulation results show that the longer the ignition delay time, the bigger the detonation cell size. The period of triple-point is almost equal to the ignition delay time of the gas behind the incident shock wave. Ignition delay time is a key parameter in detonation initiation and propagation.

     

  • loading
  • 刘云峰,姜宗林. 详细化学反应模型中温度修正项特性研究. 中 国科学,2011,41:1-11 (Liu Yunfeng, Jiang Zonglin. Study on the chemical reaction kinetics of detonation models. Sci Sin-PhyMech Astron, 2011, 41: 1-11 (in Chinese))
    戴旭刚,张德良,胡宗民等. 爆轰波与激波对撞爆轰状态演化机理研究. 力学学报,2012,44(6): 953-961 (Dai Xugang, Zhang Deliang, Hu Zongmin, et al. Investigation into mechanisms underlying head-on collision of detonations with shock waves. Chinese Journal of Theoretical and Applied Mechanics, 2012, 44(6): 953-961 (in Chinese))
    韩桂来,姜宗林,张德良. 激波与爆轰波对撞的数值模拟研究. 力学学报,2008,40(2): 154-161 (Han Guilai, Jiang Zonglin, Zhang Deliang. Numerical investigation on the collision between detonations and shocks. Chinese Journal of Theoretical and Applied Mechanics, 2008,40(2): 154-161 (in Chinese))
    滕宏辉. 气相爆轰波形成和传播机制的基础问题研究. [博士论文]. 中国科学院力学研究所,2008 (Teng Honghui. Investigation on some basic problems in the gaseous detonation initiation and propagation mechanisms. [PhD Thesis]. Beijing: Institute of Mechanics, CAS, 2008 (in Chinese))
    Oran ES. Numerical simulations of hydrogen detonations with detailed chemicalkinetics. Proceedings of the Combustion Institute, 2013, 34: 2009-2016  
    Liu YF, Jiang ZL. Reconsideration on the role of the specific heat ratioin Arrhenius law. Applications Acta Mech Sin, 2008, 24: 261-266  
    Jiang ZL, Teng HH. Research on some fundamental problems of the universal framework for regular gaseous detonation initiation and propagating. Sci Sin—Phy, Mech, Astron, 2012, 42: 421-435
    Merci B. Analysis of auto-ignition of heated hydrogen-air mixtures with different detailed reaction mechanisms. Combustion Theory and Modeling, 2011, 15: 409-436  
    Choi JY, Ma FH. Some numerical issues on simulation of detonation cell structures. Combustion, Explosion, and Shock Waves, 2008, 44(5): 560-578  
    Shepherd JE. Detonation database. Technical Report FM97-8, GALCIT, July 1997
    Turns SR. An Introduction to Combustion Concepts and Applications, Second Edition ISBN978-7-302-18762-2
    Zhao ZL, Chen Z. Correlations for the ignition delay times of hydrogen/air mixtures. Chinese Science Bulletin, 2010, 55: 1063-1069
    Golovitchev VI. Computer and experimental evaluation ofdrag reduction of blunt bodies at supersonic speeds bycounterflow combustion-concept of a "flame" spike. Chalmers University of Technology, Department of Thermo and Fluid Dynamics.
    Gel'f BE, Medvedev SP. Self-ignition of hydrogen-oxygen mixtures at high initial pressures: Numericalmodelling and experiment. Semenov Institute of Chemical Physics, Russian Academy of Sciences
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (1112) PDF downloads(835) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return