提高脉冲爆震发动机工作频率的实验研究  

Experimental Study on Increasing the Operation Frequency of Pulse Detonation Engine

作　　者：黄希桥[1] 严传俊[1] 范玮[1] 王治武[1] 郑龙席[1] 李牧[1] 

机构地区：[1]西北工业大学动力与能源学院,西安710072

出　　处：《燃烧科学与技术》2005年第5期438-442,共5页Journal of Combustion Science and Technology

基　　金：国家自然科学基金(50336030;50106012);西北工业大学青年科技创新基金(M016201).

摘　　要：实验采用汽油为燃料,压缩空气为氧化剂,通过改善气源、点火结构以及燃油雾化效果的方法,对如何提高脉冲爆震发动机工作频率进行了实验研究.脉冲爆震发动机的最高工作频率可达35Hz,此时得到的平均推力为142.8N.测试了不同爆震频率下的爆震波压力、推力及爆震波速,所测得的爆震波压力、波速和结构接近充分发展的理想爆震波,说明已产生了稳定的、充分发展的爆震.脉冲爆震发动机的平均推力随着工作频率的提高接近线性增大.The experimental study on increasing the operation frequency of PDE （pulse detonation engine） prototype is performed with gasoline as fuel and compressed air as oxidizers by improving air source, ignition structure and fuel atomization effect. A maximum operation frequency of 35 Hz is realized and the PDE performance is acquired to give the averaged thrust of 142, 8 N. The detonation pressures and averaged thrust are measured under different operation frequencies. The measured detonation wave pressure, speed and structure are close to the theoretical values of steady and fully-developed detonation wave. The averaged thrust of PDE increases almost linearly with the operation frequency.

关 键 词：发动机 脉冲爆震发动机 爆震频率 

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]