爆震波传播速度同阻力和热损失的一般关系  

DYNAMICS OF DETONATION PROPAGATION IN A ROUGH TUBE WITH HEAT LOSS

作　　者：刘颖[1] 孙英英[1] 琚诒光[1] 

机构地区：[1]清华大学工程力学系,北京100084

出　　处：《工程热物理学报》2002年第2期257-260,共4页Journal of Engineering Thermophysics

基　　金：中国科学院力学研究所LHD高温气动开放实验室基金资助项目

摘　　要：本文采用－维稳态ＺＮＤ模型，从理论分析和数值计算上详细研究了爆震波的结构和非绝热粗糙管中摩擦阻力和热损失对爆震波传播的影响．推导了爆震波的传播方程，揭示了多种爆震机制和爆震极限的存在及其机理。对低速爆震的发生给出了理论解释．Detonation propagation velocity in a rough tube taking account of heat loss and friction was investigated analytically and numerically. The flow in the reaction zone is assumed to be one-dimensional and quasi-steady. An analytical expression describing the detonation structure and the combine effects of heat and momentum loss on detonation velocity was obtained. Numerical simulation of the detonation wave structure was also made. Detonation limit and multiple detonation regimes were examined. The propagation mechanism of the low velocity detonation was explained. The result shows that the structure of low velocity detonation has been changed because of the increasing effect of friction.

关 键 词：爆震波 传播速度 阻力 热损失 发动机 超音速推进系统 数学模型 数值解 

分 类 号：V231.22[航空宇航科学与技术—航空宇航推进理论与工程]