点火管破孔的随机过程的一维两相流计算  

Numerical simulation of one-dimensional two-phase flow for the random process of vent holes breaking in center-core igniter

作　　者：冯德成[1] 翁春生[1] 王震[1] 白桥栋[1] 

机构地区：[1]南京理工大学动力工程学院,江苏南京210094

出　　处：《爆炸与冲击》2004年第6期481-486,共6页Explosion and Shock Waves

基　　金：高校青年教师奖励基金项目

摘　　要：从宏观的角度考虑了破孔过程中的随机因素,提出了破孔压差的概念,把各个传火孔的破孔压差看作是服从正态分布的独立随机变量,建立了该过程的随机模型,并用Monte Carlo方法进行了随机模拟。所得结论对点火系统的设计安全性具有一定的指导意义。The breaking of vent holes is essentially a random process, which is influenced by many random factors. In this paper, the random factors are studied in a macroscopic view, and a new concept, pressure difference of hole breaking, is presented, which is regarded as an independent random variable satisfying normal distribution. A random model is proposed and solved by the Monte-Carlo method. Results show that the conclusion of this paper can be a reference for the design of a safe ignition system.

关 键 词：爆炸力学 随机模拟 MONTE-CARLO方法 点火管 内弹道 

分 类 号：O389[理学—流体力学] TJ012.1[理学—力学]