T型微通道内液滴生成特性的实验研究

• 作 者: 马化杰 李磊 种道彤 徐峰 刘继平 严俊杰
• 机 构: 西安交通大学动力工程多相流国家重点实验室,西安交通大学生物医学工程与生物力学研究中心,
• 出 处: 工程热物理学报
• 发表日期: 2013年12期
• 关键词: T-shaped microchannels droplet formation feature size generation frequency

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 generation characteristics of droplets in T-shaped microchannels were studied experimentally, and the influence of the dispersed phase flow, the continuous phase flow and the diameter of microchannels on the droplet formation characteristics of T-shaped microchannels was obtained. The experimental results show that, Under the Ca number, the characteristic size of droplets in T-type microchannels increases with the increase of dispersed phase flow rate, decreases with the increasing of continuous phase flow rate, and decreases with the decrease of microchannel diameter.The generation frequency With the disperse phase flow, continuous phase flow increases and increases, with the microchannel diameter increases.