摘要
结构参数对自激振荡脉冲射流冲击效果存在着很大的影响,本文通过理论推导得出了自激喷嘴固有频率定性分析公式,并通过对上喷嘴直径为8-12.5 mm的低压大流量自激振荡脉冲射流喷嘴的系统试验研究,得到了其结构参数的最佳配比关系,并与以往文献介绍的高压小流量自激振荡脉冲喷嘴优化的结构参数配比相比较,根据定性公式分析引发差异的原因,结果对自激振荡脉冲射流喷嘴结构的设计具有借鉴价值。
Structural parameters greatly affect the effect of the self-excited oscillation pulsed jet. In this article, the formula of nature frequency is obtained, the structural parameters optimized range of low pressure and mass flow pulsed jet are obtained at φ8 -φ12.5 mm by experiments, the differences between low press mass flow and high pressure fewness flow pulsed jet are compared and the difference are explained, the results are useful to the design of pulsed jet nozzle.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2004年第6期956-958,共3页
Journal of Engineering Thermophysics
基金
浙江省自然科学基金重大项目资助(No.ZE0208)
关键词
自激振荡
脉冲射流喷嘴
结构参数配比
低压大流量
self-excited oscillation
pulsed jet nozzle
optimized parameters
low pressure and mass flow
