航空发动机

赵坤1，2，何立明1，曾昊1，赵晨瑞3，张胜利2，王浩2，邱海涛2.2 级脉冲爆震发动机中超声速射流对撞诱导激波聚焦试验研究[J].航空发动机,2019,45(2):55-58

2 级脉冲爆震发动机中超声速射流对撞诱导激波聚焦试验研究

Experimental Study on Shock Focusing Induced by Supersonic Jet Collision in 2-Stage PDE

DOI：

英文关键词:2-Stage PDE supersonic jet shock focusing structure and jet parameters pressure

基金项目:国家自然科学基金（91541109、51406234）资助

作者	单位	E-mail
赵坤1，2，何立明1，曾昊1，赵晨瑞3，张胜利2，王浩2，邱海涛2	1. 空军工程大学航空工程学院，西安710038；2.中国人民解放军某部队，河北沧州061700； 3.中国人民解放军某部队，乌鲁木齐830075	13228035006@163.com

摘要点击次数: 1449

全文下载次数: 1165

中文摘要:

为研究2-Stage PDE 中连续超声速射流及结构参数对撞诱导激波聚焦的影响规律，在冷态条件下开展了2-Stage PDE 中连续超声速射流对撞诱导激波聚焦的试验。分析了喷口宽度、导流环深度、凹面腔开口端与喷管间距、尾喷管角度、射流入射压力等参数对凹面腔底部峰值压力的影响。结果表明：喷口宽度、导流环深度、凹面腔开口端与喷口间距、射流入射压力越大，凹面腔底部峰值压力越大，激波聚焦效果越好；尾喷管角度越大，凹面腔底部峰值压力越小，激波聚焦效果越差；喷口宽度、导流环深度、射流入射压力对激波聚焦的影响较大。

英文摘要:

In order to study the influence of continuous supersonic jet and structure parameters on shock focusing induced by collision in 2-Stage PDE,the experiment of continuous supersonic jet on shock focusing induced by collision in 2-Stage PDE was carried out under cold condition. The influence of the width of the nozzle,depth of guide ring,distance between the open end of concave cavity and nozzle, angle of nozzle and pressure of jet incidence on the peak pressure at the bottom of concave cavity were analyzed. The results show that the larger the width of the nozzle,the depth of the guide ring,the distance between the open end of the concave cavity and the nozzle,the jet incidence pressure are,the greater the peak pressure at the bottom of the concave cavity is,and the better the shock focusing effect is. The bigger the angle of nozzle is,the smaller the peak pressure at the bottom of concave cavity is and the worse the shock focusing effect is.

查看全文查看/发表评论下载PDF阅读器