脉冲爆震发动机(PDE)引射增推装置试验

Experimental Investigation on Thrust Augmentation of Pulsed Detonation Engine(PDE)

PDE设计了两种结构的排气引射增推装置,通过对两种结构排气引射增推装置的试验对比,研究了排气引射增推装置对PDE推力贡献,试验结果表明在合理的结构设计下,采用排气引射增推装置可使PDE平均推力增加50%左右。理论分析了排气引射增推装置的工作机理,及不同结构参数对PDE排气引射增推装置的影响,为PDE排气引射增推装置优化设计提供了理论和试验依据。

A preliminary experimental investigation on the effect of thrust augmentation on Pulsed Detonation Engine （PDE） performance was performed. Two different thrust augmentation geometries were designed and tested. The results show that in average more than 50% thrust increment could be gained under rational construction parameters. Analysis of the mechanism of thrust augmentation and the influence of different construction parameters on thrust improve ment was performed. These results offered basic reference for design optimization of the PDE thrust augmentation.