A Study on Micromixing Utilizing Marangoni Effect Induced on Gas–Liquid Free Interfaces
A Study on Micromixing Utilizing Marangoni Effect Induced on Gas–Liquid Free Interfaces
复制标题
利用气液自由界面诱导的马兰戈尼效应进行微混合的研究
DOI：
10.1115/1.4029684
复制
发表时间：
2015
影响因子：
1
通讯作者：
N. Ono
中科院分区：
文献类型：
--
作者：
Takashi Yamada;N. Ono
传统上，微观混合被认为是由分子扩散控制的。然而，作者认为平流在混合增强中是重要的，并且适用于许多工业领域中的微混合装置。在这里，Marangoni对流，一种类型的剪切流引起的气液自由界面，被引入作为一个额外的源微观混合。为了评估这一建议，两种不同的表面张力值的液体混合在一个毛细通道制造的光刻技术。流动实验证实了Marangoni对流在快速混合中的作用。
Traditionally, micromixing has been thought to be governed by molecular diffusion. However, the authors consider that advection is important in the mixing enhancement and applicable to micromixing devices in many industrial fields. Here, the Marangoni convection, a type of shear flow induced at gas–liquid free interfaces, is introduced as an additional source for micromixing. To evaluate the proposal, two liquids with different surface tensions values were mixed in a capillary channel fabricated by the photolithography technique. The utility of Marangoni convection was confirmed in rapid mixing by the flow experiments.