新型自激振荡脉冲射流影响因素

山东大学学报(工学版)

新型自激振荡脉冲射流影响因素

陈颂英，李春峰，曲延鹏

山东大学机械工程学院，山东济南250061

收稿日期:2005-09-29 修回日期:1900-01-01 出版日期:2006-08-24 发布日期:2006-08-24
通讯作者: 陈颂英

Research on the effect factors of the novel selfexcited oscillation pulse jet

CHEN Songying,LI Chunfeng,QU Yanpeng

School of Mechanical Engineering,Shandong University,Jinan 250061,China

Received:2005-09-29 Revised:1900-01-01 Online:2006-08-24 Published:2006-08-24
Contact: CHEN Songying

摘要/Abstract

摘要： 基于混合模型，对空化模型进行改进，建立适用于新型自激振荡脉冲射流喷嘴内高速射流场模拟的二维非定常空化模型的数值方程，分析了喷嘴结构参数和运行参数对自激振荡脉冲效果的影响.通过对上喷嘴直径为6.68?mm的低压大流量自激振荡脉冲射流系统的试验，得到了其结构参数的最佳配比关系，同时应用Fluent软件进行了数值模拟，计算结果与试验结论基本一致.

关键词: 自激振荡, 结构参数, 运行参数, 脉冲射流

Abstract: Based on the mixed model, cavity model is modified to establish numerical equations of the two dimensional unsteady model which can be benefited in the inner high velocity jet flow field of the nozzle. The influence of structural and operating parameters on the nozzle is analyzed. The optimized range of structural and operating parameters of low pressurehigh mass flow pulsed jet are obtained by experimental research. The Fluent computation is employed to show the correspondence with experimentation.

Key words: structural parameters, operating parameters, pulsation jet flow , selfexcited oscillation

陈颂英,李春峰,曲延鹏 . 新型自激振荡脉冲射流影响因素[J]. 山东大学学报(工学版), 2006, 36(4): 12-15 .

CHEN Songying,LI Chunfeng,QU Yanpeng . Research on the effect factors of the novel selfexcited oscillation pulse jet[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2006, 36(4): 12-15 .

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