摘要
振荡射流可有效增强喷射流体与周围流体的相互作用,在能源、化工、航空航天、精密制造等领域有着重要应用价值,受到国内外学者广泛关注。为更好地了解振荡射流发展现状及未来发展趋势,本文对微射流、机械式、反馈式、钝体–V形喷嘴、冲击V形板、腔体自激拍打、薄膜自激拍打等7种激励方式的振荡射流进行了全面归纳与分类,对比分析了不同激励方式的原理及其产生的振荡射流特性,指出了振荡射流技术存在的问题及工业应用的局限性,预测了其发展前景并给出了发展建议。
The flow control method can effectively promote the mixing of the injected fluid with the surrounding fluid,and it has important applications in various fields,such as energy,chemical industry,aerospace and precision manufacturing,etc.Therefore,it has received widespread attention from scholars worldwide.In order to better understand the current situation and future development trend of oscillatory jets,this paper is the first to comprehensively summarize and classify the seven excitation methods of oscillatory jets,such as microjet,mechanical,feedback,blunt V-nozzle,impact V-plate,cavity self-excited flapping,film self-excited flapping,etc.A comparison of the principles of the different excitation methods and the characteristics of the resulting oscillating jets is conducted,pointing out the problems of the oscillating jet technology itself and the limitations of the industrial application of related technologies,and giving forecasts and suggestions for the development of the oscillating jet technology.
作者
吴梦维
徐敏义
米建春
WU Mengwei;XU Minyi;MI Jianchun(College of Engineering,Peking University,Beijing100871,China;Marine Engineering College,Dalian Maritime University,Dalian116026,China)
出处
《实验流体力学》
CAS
CSCD
北大核心
2023年第4期1-17,共17页
Journal of Experiments in Fluid Mechanics
基金
国家自然科学基金项目(11972048)。
关键词
振荡射流
流动控制
射流混合
自激振荡
oscillatory jet
flow control
jet mixing
self-excited oscillation
