Numerical Analysis of Controlled Droplet Formation Surrounded by a Shear-Thinning Fluid in a Coflow Microfluidic Device

IF 3.8 3区 工程技术 Q2 ENGINEERING, CHEMICAL
Manohar Jammula, Somasekhara Goud Sontti
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引用次数: 0

Abstract

In this work, we used a coupled level set and volume of fluid (CLSVOF) computational method for studying the generation of microdroplets in a two-dimensional circular coflow microfluidic device. The fundamental understanding of shear-thinning behavior on controlled droplet formation in a microchannel is systematically investigated. Droplet generation and dynamics are controlled by altering the operating conditions and fluid properties, such as CMC solution concentration, both fluids’ flow rates, and interfacial tension. The droplet length, velocity, liquid film thickness, and formation frequency are quantitatively analyzed and presented in a non-dimensional form. The droplet length decreased with the flow rate and concentration of the CMC solution. However, the length of the droplet increased with the dispersed phase flow rate and interfacial tension. From the set of simulation data, flow regime maps and scaling relations are developed over a range of operating conditions. This work provides critical insights into the uniform and controlled droplet formation in shear-thinning fluids within a circular coflow microchannel, offering guidance for future innovations in the design and optimization of microfluidic systems for specific applications.

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来源期刊
Industrial & Engineering Chemistry Research
Industrial & Engineering Chemistry Research 工程技术-工程:化工
CiteScore
7.40
自引率
7.10%
发文量
1467
审稿时长
2.8 months
期刊介绍: ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.
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