RDX的一维快烤燃模型及计算

田占东; 张震宇; 卢芳云; 赵剑衡; 谭福利

doi:10.11858/gywlxb.2013.03.008

RDX的一维快烤燃模型及计算

doi: 10.11858/gywlxb.2013.03.008

1.
国防科技大学理学院技术物理研究所，湖南长沙 410073；
2.
中国工程物理研究院流体物理研究所，四川绵阳 621900

详细信息

通讯作者:
赵剑衡 E-mail:jianh_zhao@sina.com

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出版历程
- 收稿日期: 2011-03-08
- 修回日期: 2011-06-06
- 发布日期: 2013-06-15

One-Dimensional Model and Calculation for Fast Cook-off of RDX

1.
Institute of Technical Physics, College of Science, National University of Defense Technology, Changsha 410073, China;
2.
Institute of Fluid Physics, CAEP, Mianyang 621900, China

摘要

摘要: 以RDX（黑索金）为研究对象，基于气相点火机制，建立了强激光辐照金属密封炸药装置的快烤燃模型。模型包括金属壳体、气隙和炸药3部分，利用气隙的热传导描述金属和炸药之间的非理想热接触，考虑了炸药的分解、熔化和蒸发过程，采用多组分、多通道反应机制描述化学反应过程。编制了相应的计算程序，对RDX的激光快烤燃过程进行了数值计算，结果表明，RDX的快烤燃过程大致可以分为惰性热传导、温度和气相反应物的累积以及快速化学反应，直至点火几个阶段。
- 快烤燃 /
- 黑索金(RDX) /
- 点火时间 /
- 数值计算
Abstract: Based on gas-phase reaction mechanism, a fast cook-off model was established to study the process of RDX in a confined vessel irradiated by laser. The model considers steel vessel, air gap and condensed explosives. The heat conduction in air gap was used to describe the nonideal thermal contact. The process of decomposition, melting and evaporation in condensed RDX, and the reaction of multi-species and multi-steps in air gap were considered in model calculation by use of finite difference. Results show that the fast cook-off process of RDX can be approximately divided into three stages: inert heating, accumulation of reactants and increase of temperature, and ignition caused by rapid chemical reaction.
- fast cook-off /
- RDX /
- ignition time /
- numerical simulation

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参考文献(14)

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