Reflection behavior of insensitive explosive detonation propagating around a cylinder

作     者：Zixuan Zhang Yuan Wang Xiaomian Hu Haitao Chen 张子瑄;王元;胡晓棉;陈海涛

作者机构：Institute of Applied Physics and Computational MathematicsBeijing 100094China Graduate School of China Academy of Engineering PhysicsBeijing 100088China 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2024年第40卷第7期

页      面：55-65页

核心收录：

学科分类：08[工学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Insensitive explosive detonation Cylindrical inert material Reflection behavior 

摘      要：Insensitive explosive detonation has wide applications in compressing and driving inert materials,and thereby the interaction between detonation and inert materials has received more *** this paper,a two-dimensional numerical simulation based on the Euler multiphase flow framework is used to investigate the reflection behavior of the insensitive explosive detonation propagating around a *** results show that there is a critical incident angle,defined as transition angle for detonation propagating around the cylinder,below which the regular reflection(RR)on the cylinder surface is *** the incident angle is greater than the transition angle,RR changes to Mach *** transition angle is larger than that obtained by polar curve theory and the change of incident angle is used to interpret above *** addition,the influence of cylindrical radius and detonation reaction zone width on the reflection behavior is *** the cylindrical radius increases,the height of Mach stem increases while the transition angle decreases and gradually approaches the value in pole curve *** Neumann reflection is observed when the reaction zone width is relatively *** is because the energy release rate in the reaction zone is high for small reaction zone width,resulting in the formation of a series of compression waves near the cylindrical interface.