关键词: 脉冲爆震发动机;飞行品质;计算;模型

Abstract: To gain the changing rules of pulse detonation engine performance parameters with different flight altitude and Mach number,the basic equations of detonation combustion’s equilibrium composition and density,equilibrium parameters were established for numerical simulation of detonation wave performance parameters with theory of Gibbs free energy minimization,and with which,a performance calculation model of air-breathing pulse detonation engine with inlet and nozzle was established in some flight regimes.The variation trends of the pulse detonation engine performance with flight altitude and velocity were studied.The results show that performance of pulse detonation engine has some variation trends in some regimes of different flight altitude and Mach number.The effect of nozzle on performance is also considered in the model and it gave a basis for performance analysis and design of pulse detonation engine.

Key words: Pulse detonation engine;Flying quality;Computation;Model