摘要
对带有共振腔的特种喷嘴进行了试验研究。试验得到了脉冲射流并给出了定量数据。这种脉冲射流除了具有脉冲性能外,还同样具有一般射流的特性。射流结构分为初始段和基本段,且在基本段中射流存在自模性。本文给出了其数学表达式以及轴心速度沿喷距的变化规律。文中给出的脉冲射流的定性和定量结果将有助于射流技术的发展及其在喷射钻井中的应用。
A nozzle with resonant cavity was designed and tested under pulse jet condition to give quantitative data. This pulse jet displayed the properties of pulsation and jet flew in general. The structure of the jet flow included a beginning section and a basic section. The basic section showed similar dimensionless velocity distribution. The mathematical expressions of velocity distribution and the change of axial velocity with jet distance were obtained. The conclusions could help the development of jet technology and its application to jet drilling.
出处
《石油大学学报（自然科学版）》
CSCD
1990年第6期9-14,共6页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
共振腔
喷嘴
紊流
射流
喷射钻井
Pulse jets
Turbulent jets
Similarity
Velocity distribution
