气相爆轰胞格结构和马赫反射数值模拟  

Numerical Simulation of Cellar Structures and Mach Reflection of Gaseous Detonation Waves

作　　者：张德良[1] 谢巍[1] 郭长铭[2] 胡湘渝[1] 

机构地区：[1]中国科学院力学研究所高温气体动力学开放实验室,北京100080 [2]中国科学技术大学力学与机械工程系,安徽合肥230027

出　　处：《爆炸与冲击》2001年第3期161-167,共7页Explosion and Shock Waves

基　　金：国家自然科基金项目 (19872 0 86 )

摘　　要：采用简化二阶段化学反应模型和改进的高精度时空守恒方法 (CE/SE)对二维可燃气体DDT过程和爆轰波在楔面上的马赫反射进行了数值模拟 。The Deflagration to Detonation Transition (DDT) process of combustible gases and Mach Reflection of a detonation wave on a wedge have been numerically simulated with a simplified two-step model (ZND) of chemical reaction and the improved method of space-time conservation element and solution element (CE/SE). The computational results were primarily analyzed. The numerical results were compared with experimental results. Compared results are satisfactory. This is the first time to apply CE/SE method to the chemical reaction flow, especially to the simulation of DDT process of combustible gases and Mach reflection of detonation waves.

关 键 词：DDT过程 爆轰波 马赫反射 CE/SE方法 胞格结构 气相 

分 类 号：O381[理学—流体力学]