窄空间流道内受限空泡演化影响流型演变的可视化实验研究  

Visual Experimental Investigation on the Evolution of Confined Bubble Effect the Evolution of Flow Pattern in Narrow Space Channel

作　　者：陈德奇[1] 黄云程[1] 王庆华[1] 段振刚[1] 任松[1] 潘良明[1] 

机构地区：[1]低品位能源利用技术及系统重点实验室,重庆大学,重庆400044

出　　处：《工程热物理学报》2013年第11期2073-2076,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.51206199);中央高校基本科研业务费(No.CDJZR12140029;No.CDJRC10140004)

摘　　要：气相分别以空气、氮气、氩气和CO_2气体为工质,液相以水为工质在内径分别为2 mm和6 mm的流道内开展可视化实验研究.研究了不同液相流量下,气泡长度和气泡间的间隔长度随气相流量的变化规律,并分析了在直径为2mm的流道内不同气相工质物性参数(包括Eo效和Mo数)对流型演变的影响.文章还比较了在直径为2 mm的流道内和直径为6 mm的流道内空泡行为对流型的影响.Air, nitrogen, argon and carbon dioxide gas were used as gas-phase working fluid in this study respectively, and water was used as the liquid-phase working fluid. Visual experiment was carried out in the channels with inner diameter of 2 mm and 6 ram. In this study, the bubble length and the gap between adjacent bubbles are analyzed with different gas flow rate and different liquid flow rate. Also, the effect of the properties of different gases （including the Eo number and Mo number） on the evolution of flow patterns in the channel of 2 mm inner diameter is analyzed. In this paper, a comparison between the effects of bubble behaviors on the flow patterns in 2 mm channel and 6 mm channel is proposed.

关 键 词：窄空间流道 两相流 流型 可视化研究 

分 类 号：TK123[动力工程及工程热物理—工程热物理]