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Comparison of Slug Breakup for Confined Liquid–Liquid Flows in Serpentine Minigeometry
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-03-23 , DOI: 10.1021/acs.iecr.0c00009 Raj Kumar Verma 1 , Sumana Ghosh 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-03-23 , DOI: 10.1021/acs.iecr.0c00009 Raj Kumar Verma 1 , Sumana Ghosh 1
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Experiments are conducted for studying the slug breakup mechanism for three different liquid pairs in a serpentine minireactor of i.d. 2 mm. Liquid pairs used are kerosene–water (K–W), toluene–water (T–W), and jatropha oil–methanol (O–M). Two liquid pairs have a density ratio close to 0.8; however, they have widely varying viscosity ratios. The other two have a viscosity ratio of 0.6 but different density ratios. Flow patterns observed for all liquid pairs are categorized into four different groups, namely, slug flow, slug with droplet flow, intermittent slug flow, and droplet-dispersed flow. For higher dispersion to continuous phase viscosity ratio, long viscous thread formation is noticed, which leads to drop disintegration. However, for low dispersion to continuous phase viscosity ratio, the mechanism of formation of small droplets from slender slug takes place at a low Ohnesorge number.
中文翻译：
蛇形微型几何中受限液-液流的团塞破坏比较
进行实验研究内径2 mm的蛇形微型反应器中三种不同液体对的团块破裂机理。所使用的液体对包括煤油-水（K-W），甲苯-水（T-W）和麻风树油-甲醇（O-M）。两对液体的密度比接近0.8；但是，它们的粘度比变化很大。另外两个的粘度比为0.6，但密度比不同。对所有液体对观察到的流动模式可分为四个不同的组，即团状流，带液滴状流的团状，间歇性团状流和液滴分散型。对于更高的分散体与连续相的粘度比，注意到形成了长粘性线，这导致液滴崩解。但是，对于低分散液与连续相的粘度比，
更新日期：2020-04-24
中文翻译：
蛇形微型几何中受限液-液流的团塞破坏比较
进行实验研究内径2 mm的蛇形微型反应器中三种不同液体对的团块破裂机理。所使用的液体对包括煤油-水（K-W），甲苯-水（T-W）和麻风树油-甲醇（O-M）。两对液体的密度比接近0.8；但是，它们的粘度比变化很大。另外两个的粘度比为0.6，但密度比不同。对所有液体对观察到的流动模式可分为四个不同的组，即团状流，带液滴状流的团状，间歇性团状流和液滴分散型。对于更高的分散体与连续相的粘度比，注意到形成了长粘性线，这导致液滴崩解。但是，对于低分散液与连续相的粘度比，
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