Enhancement of mixing by microbubble emission boiling in a microfluidic device

被引：0
|
作者：
H. Kato
M. Yamaguchi
机构：
[1] Toyo University,Department of Mechanical Engineering
[2] Toyo University. Presently Ageo East Junior High School,Graduate School of Engineering
来源：
Journal of Visualization | 2009年 / 12卷
关键词：
Microfluidic device; μ-TAS; Microbubble emission boiling; Mixing; Enhance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effect of microbubble emission boiling (MEB) on the mixing of two fluids in a microfluidic device was studied experimentally. When MEB occurred on an electric heater made of a platinum wire with a diameter of 30 micrometers, the mixing of the two fluids increased markedly. However, nucleate boiling had no significant effect on the mixing. A high-speed video showed that the very rapid growth and collapse of micro boiling bubbles on the heater causes the strong mixing of the two fluids. The coexistence of highly superheated and highly subcooled water near the heater seems to be the reason for such enhanced mixing.
引用
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页码：267 / 274
页数：7
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