高校化学工程学报2017，Vol.31Issue(1)：38-42,5.DOI:10.3969/j.issn.1003-9015.2017.01.006
90°Y型汇流下小曲率矩形截面蛇形微通道气液两相流动特性
Gas-Liquid Two-Phase Flow in Serpentine Microchannels with Small Curvature
and 90° Y-Shape Mixing Junction
周云龙 1杨美 1孙振国1
作者信息
- 1. 东北电力大学能源与动力工程学院,吉林吉林 132012
- 折叠
摘要
Abstract
Visualization studies were performed in serpentine microchannels with 90° Y-junction using a high speed camera. Air and deionized water were used as gas and liquid phase, respectively, and the channels were in rectangular shape with cross-section area of 800μm×100μm. Unusual flow patterns as often shown in straight microchannels were observed by changing gas and liquid flow rates. The results show that gas halberd or liquid slug length shows little change in each horizontal segment, but both increase gradually in the whole process. The predicted values from Qian's model agree with the present experimental results for gas halberd length, and the voidage model proposed by Cioncolini for results verification shows promising application in coiled structure prediction.关键词
蛇形微通道/流型/气戟/空隙率/相分布Key words
serpentine microchannels/flow patterns/gas halberd/void fraction/phase distribution分类
能源科技引用本文复制引用
周云龙,杨美,孙振国..90°Y型汇流下小曲率矩形截面蛇形微通道气液两相流动特性[J].高校化学工程学报,2017,31(1):38-42,5.
