特征线法在脉冲爆震发动机性能计算中的应用  

Application of Characteristic Method to the Performance Calculation of the Pulse Detonation Engine

作　　者：陈永刚[1] 何立明[1] 刘建勋[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038

出　　处：《航空动力学报》2005年第4期641-644,共4页Journal of Aerospace Power

基　　金：中国博士后科学基金资助项目(中博基[2003]03号)

摘　　要：在x-t平面建立爆震波在爆震室内传播过程的物理模型,应用特征线算法对脉冲爆震发动机(PDE)一维非定常流进行了数值计算,在此基础上给出了脉冲爆震发动机的性能参数的计算方法。并举算例进行了计算和分析,结果表明应用特征线算法计算PDE性能是可行而且准确的。A physical model of the detonation wave propagation process in the detonation combustion chamber was developed on the x--t diagram,and one-dimensional numerical simulation of the unsteady flow in a pulse detonation engine was conducted by applying characteristic method. With that an engine performance calculation method was deduced. The PDE performance calculation result shows that characteristic method is feasible and accurate.

关 键 词：航空 航天推进系统 脉冲爆震发动机 特征线法 发动机性能 

分 类 号：V235.22[航空宇航科学与技术—航空宇航推进理论与工程]