爆炸驱动固/液介质爆炸抛撒的实验研究  

Explosive dispersal of solid and liquid media:Experimental investigation

作　　者：蒋海燕[1] 王树山[1] 魏继锋[1] 饶彬[1] 张之暐 

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]中国兵器工业导航与控制技术研究所,北京100089

出　　处：《爆炸与冲击》2014年第5期574-579,共6页Explosion and Shock Waves

摘　　要：针对爆炸驱动固/液介质抛撒混合过程设计了透明双层抛撒装置。采用高速运动分析系统记录抛撒装置壳体破碎和固/液界面、固/液介质抛撒形态的演变过程,结果表明:壳体裂纹的产生和断裂首先出现在轴向方向;固/液界面在外层壳体破碎之前清晰可见,表明固/液介质的混合主要发生在壳体破碎之后;导爆索驱动下呈现滑移爆轰驱力特征,介质抛撒形状呈倒圆台形,不同截面处的介质运动速度随截面到起爆端轴向距离的增大而减小。According to the dispersal mixing process of explosive-driven solid powder and liquid,a transparent double-layer dispersal device was designed.A high-speed photography system was used to record the shell crushing of the dispersal device and the evolution of the solid-liquid interface and dispersal cloud status.The crack in the shell appeared and the shell fractured first along the axial direction of the shell.Before the outer shellbroke,the solid-liquid interface was clear,which indicated that the solid powder and liquid mixed mainly after the shell failure.The detonation waves driven by the detonating cord presented sliding-detonation characteristics,the dispersal cloud shape took on an inverted truncated cone,and the cloud movement velocities at the different sections were inversely proportional to the axial distance of the sections from the initiation location.

关 键 词：爆炸力学 爆炸抛撒 滑移爆轰 固体粉末 液体 界面 

分 类 号：O389[理学—流体力学]