T型微通道内液滴生成特性的实验研究  

Experimental Study on Formation Characteristics of Droplets Generated in T-shaped Microchannels

作　　者：马化杰 李磊[1] 种道彤[1] 徐峰[2] 刘继平[1] 严俊杰[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049 [2]西安交通大学生物医学工程与生物力学研究中心,西安710049

出　　处：《工程热物理学报》2013年第12期2284-2287,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.51006081);中央高校基本科研业务费专项资金;国家重点基础研究发展规划资助项目(No.2009CB219803)

摘　　要：本文通过实验研究了T型微通道内液滴的生成特性,获得了T型微通道内分散相流量、连续相流量以及微通道直径变化对液滴生成特性的影响规律.实验结果表明;在低Ca数下,T型微通道内液滴的特征尺寸随分散相流量的增大而增大,随连续相流量的增大而减小,随微通道直径的减小而减小.其生成频率随分散相流量、连续相流量的增大而增大,随微通道直径的增大而减小.In this paper, the formation characteristics of droplets generated in T-shaped microchan- nels are studied, and the influence of dispersed phase flux, continuous phase flux and microchannel diameter on the formation of the droplets is analyzed. The experimental results show that at low capillary number, the feature size of the droplets in T-shaped microchannels increases with the increasing of the dispersed phase flux, decreases with the increasing of the continuous phase flux, and decreases with the decreasing of the microchannel diameter. The generation frequency increases with the increasing of the dispersed phase flux and the continuous phase flux, and decreases with the increasing of the microchannel diameter.

关 键 词：T型微通道 液滴生成 特征尺寸 生成频率 

分 类 号：TK123[动力工程及工程热物理—工程热物理]