电热丝的起爆及其临界性(英文)  

Initiation of Explosion by an Electrically Heated Wire and Its Criticality

作　　者：冯长根[1] 杜志明[1] 

机构地区：[1]北京理工大学力学工程系

出　　处：《北京理工大学学报》1990年第S1期72-80,共9页Transactions of Beijing Institute of Technology

摘　　要：研究了一个一维圆筒形电热丝热起爆模型,文中采纳了两个常用假定:①定态假设;②不考虑反应物的消耗。但本文考察的Arrhenius反应速率定律没有作任何近似,只在为了取得分析解的情况下采用了指数近似.获得了作为各种系统爆炸判据的Frank-Kamenetskii参数的临界值及临界温度分布。One - dimensional cylindrical model of initiation of explosion by means of a hot wire has been studied . The common asumptions of (1) considering only steady-state solutions , (2) neglecting reactant consumption ,are employed .But the Arrhenius reaction-rate law is considered in its exact form, although the exponential approximation is used for obtaining analytical expressions . Critical values for explosion criteria , the Frank- Kamenetskii parameter δ, are obtained and critical temperature distribution are presented for various systems .

关 键 词：燃烧理论 点火理论 热点火 热爆炸/电热丝起爆 爆炸判据 

分 类 号：N55[自然科学总论]