脉冲爆震发动机总压损失系数对推力性能的影响  

Investigation on Thrust Performance of Pulse Detonation Engine with Changing Coefficients of Total Pressure Loss

作　　者：刘鸿[1] 

机构地区：[1]江苏工业学院机械与能源工程学院,江苏常州213016

出　　处：《江苏工业学院学报》2009年第3期15-18,共4页Journal of Jiangsu Polytechnic University

基　　金：国防基础预研基金资助(A2520060227)

摘　　要：为了研究脉冲爆震发动机(Pulse Detonation Engine,简称PDE)总压损失系数对推力的影响,采用经验数据和计算相结合的方法,并以直径180 mm,长度为2.2 m,带气动阀的脉冲爆震发动机为例,分别计算了PDE内总压损失系数在5、8、13.5、16、20时对PDE工作频率和推力的影响,并与实验数据进行了对比分析。计算表明:当损失系数从13.5增加到20时,推力下降27.3%;而总压损失系数从13.5减小到5时,推力增加78.8%。因此总压损失系数是PDE优化设计的重要参数。In order to investigate the influence for trust with the changing coefficients of total pressure loss of Pulse Detonation Engine （PDE） , the performance of PDE with aerovavle in diameter 180 mm, length 2.2 m was studied by combining experiential data and computation. The influence of the working frequency and thrust of PDE was also calculated, as the coefficient of total pressure loss in PDE was 5, 8, 13.5, 16 and 20. It could be seen from the computation that the thrust dropped 27.3% , when the coefficient of total pressure loss was varying from 13.5 to 20. On the contrary, the thrust increased 78.8%, when the coefficient was varying from 13.5 to 5. Thus, the coefficient of total pressure loss is a very important parameter for optimally designing PDE.

关 键 词：脉冲爆震发动机 爆轰 总压损失系数 推力 

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]