Droplets generation under different flow rates in T-junction microchannel with a neck
Droplets generation under different flow rates in T-junction microchannel with a neck
复制标题
带颈T型连接微通道内不同流速下液滴的产生
DOI：
10.1002/aic.16290
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发表时间：
2020
期刊：
影响因子：
3.7
通讯作者：
Liu Zhaomiao
中科院分区：
文献类型：
--
作者：
Pang Yan;Zhou Qiang;Wang Xiang;Lei Yanghao;Ren Yanlin;Li Mengqi;Wang Ju;Liu Zhaomiao
记录具有颈部的微流体T型连接装置中液滴形成的2D俯视图，以估计不同流动条件下的液滴体积。提出了在T形接头处具有颈部的通道，以提供狭窄的结构，但尚未作为正常T形接头进行分析。将液滴生成过程分为两个阶段，包括填充阶段和挤压阶段，以开发基于两种液体的连续性的液滴尺寸预测模型。在多相微流体的广泛流动条件下，本研究通过分析液滴的产生和模型的系数来验证和物理解释模型。本研究的结果可以帮助设计液滴微流控装置，它是必要的，知道流动条件和液滴大小之间的关系。
The 2D top view of the droplet formation in microfluidic T‐junction devices with a neck is recorded to estimate the droplet volume under different flow conditions. The channel with a neck at the T‐junction, to provide a narrow structure, is proposed but has not been analyzed as the normal T‐junction. The droplet generation process is separated into two stages, including the filling stage and the squeezing stage, to develop a droplet size predictive model based on the continuity of both liquids. In a wide range of flow conditions for multiphase microfluidics, this study validates and physically explains the model by analyzing the generation of droplets and coefficients of the model. Results of this study can help to design droplet microfluidic devices, where it is requisite to know the relation between flow conditions and the droplet size.