HNS-Ⅳ炸药的点火增长模型  

Ignition and growth reactive flow model for HNS-Ⅳ explosive

作　　者：陈清畴[1] 蒋小华[1] 李敏[1] 卢校军[1] 彭其先[2] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900 [2]中国工程物理研究院流体物理研究所,四川绵阳621900

出　　处：《爆炸与冲击》2012年第3期328-332,共5页Explosion and Shock Waves

摘　　要：进行直径10mm的圆筒实验,根据冲击Hugoniot关系,拟合了HNS-Ⅳ炸药的未反应时的JWL状态方程,并通过数值模拟确定了HNS-Ⅳ炸药爆轰产物JWL状态方程参数;测量炸药/窗口界面粒子速度历程,结合数值模拟获得HNS-Ⅳ炸药的点火增长模型反应速率方程参数。研究表明,HNS-Ⅳ炸药点火增长模型能够描述反应过程并与实验结果吻合较好。To develop an ignition and growth reaction flow model for HNS-Ⅳ explosive,cylinder tests were conducted on HNS-Ⅳ explosive and the expansion processes of the copper cylinder walls were recorded by a GSJ high speed rotating mirror camera,and particle velocities at the interface between HNS-Ⅳ explosive and LiF window were measured with laser velocity interferometry（VISAR）.The corresponding numerical simulations were carried out by ANSYS/LS-DYNA,respectively.The JWL equation-of-state parameters for unreacted explosive were fitted to the available shock Hugoniot data.And by combining the experimental results and numerical simulations,the JWL equation-of-state parameters for detonation product were determined,as well as reactive rate parameters for reaction ignition and growth in HNS-Ⅳ explosive.Investigated results show that the developed ignition and growth reaction flow model can be used to picture the reaction process of HNS-Ⅳ explosive,and the numerically simulated results can agree with the experimental ones.

关 键 词：爆炸力学 反应速率方程 界面粒子速度 HNS-Ⅳ炸药 

分 类 号：O381[理学—流体力学]