Visualization of Mass Transfer during Droplet Formation
Visualization of Mass Transfer during Droplet Formation
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DOI：
10.1002/ceat.201800706
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发表时间：
2019-05
影响因子：
2.1
通讯作者：
J. Heine;H. Bart
中科院分区：
文献类型：
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作者：
J. Heine;H. Bart
研究了液滴在静止连续相中形成期间液-液萃取中传质的影响。以罗丹明6 G为示踪剂，采用激光诱导荧光（LIF）技术研究了甲苯-丙酮-水体系中悬滴的粒径、浓度和形成速率对悬滴的影响。液滴形成速率对液滴内部的传质和混合模式具有主要影响。非常快速的传质引起的马兰戈尼对流可视化在一个高的本地分辨率独立的浓度和形成速率。
The impact of mass transfer in liquid‐liquid extraction during droplet formation in a quiescent continuous phase was investigated. The impact of droplet size, concentration, and formation rate on a hanging droplet was analyzed via laser induced fluorescence (LIF) using rhodamine 6G as tracer in the system of toluene and acetone in water. The droplet formation rate has a major impact on mass transfer and the mixing pattern inside the droplet. Very fast mass transfer induced by Marangoni convection was visualized at a high local resolution independently of concentration and formation rate.