供气含氧量对脉冲爆轰发动机性能影响的实验研究  

Experimental Study on Effect of Oxygen Content in Gas on the Performance of Pulsed Detonation Engine

作　　者：秦鹏高[1] 白桥栋[1] 翁春生[1] 栗保明[1] 

机构地区：[1]南京理工大学瞬态物理重点实验室,南京210094

出　　处：《弹道学报》2011年第1期5-8,共4页Journal of Ballistics

基　　金：国家自然科学基金项目(10672080);高等学校博士学科点专项科研基金项目(20093219110037)

摘　　要：为研究氧化剂中含氧量对脉冲爆轰发动机性能的影响,对采用不同含氧量的压缩气体作为氧化剂的火箭式脉冲爆轰发动机进行了实验研究.实验结果表明,压缩气体中含氧量变化对爆轰波压力有较大影响,在压缩气体中适当提高氧气含量,能显著促进爆轰的转变;爆轰波峰值压力随着含氧量的提高而增大,并能在爆轰管中形成稳定的爆轰.采用氧气和氮气混合气体作为气源的火箭式脉冲爆轰发动机可简化氮气作为隔离气体时的进气过程.实验结果对提高火箭式脉冲爆轰发动机的工作频率的实验研究具有实际意义.To study the effect of oxygen content in gas on the performance of pulsed detonation engine,the experiment was carried out aiming at different oxygen content in the compressed gas as oxidizer.The experimental results show that the oxygen content in compressed gas has an obvious influence on the detonation wave pressure.While increasing the oxygen content in the compressed gas,the process of transition to detonation can be significantly enhanced.As oxygen content increases,the peak pressure of detonation rises,and the stable detonation forms in the detonation tube.The gas charging process can be simplified by using the mixture of oxygen and nitrogen as oxidant.The result has an important value for increasing the frequency of pulsed detonation engine.

关 键 词：脉冲爆轰发动机 爆轰波 含氧量 

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] V211