Study on the stable shape of droplets in two-phase contraction microchannels
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Keywords:
Droplet dynamics
droplet-based microfluidic
droplet shape
contraction microchannel
numerical simulation
Abstract
The droplet-based microfluidic system is increasingly advancing and widely applied in various fields of analytical techniques and experiments. Understanding the hydrodynamics of liquid droplets is crucial for precise droplet manipulation and control, thus optimizing the design and performance of the devices. This paper investigates the influences of the viscosity ratio (λ), the contraction ratio (C), and the capillary number (Ca) on the length ratio ( ) and the height ratio ( ) of droplets in a stable state within a contraction microchannel using a 3D simulation method (3D). The results reveal that, these three factors exhibit a positive correlation with the ratio of the droplet. Meanwhile, the ratio demonstrates a positive correlation with λ and a negative correlation with Ca and C.
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Published
Jul 31, 2024
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How to Cite
Nguyễn Thanh Tùng, Hoàng Văn Thạnh, Trương Lê Bích Trâm, Lưu Đức Bình, Trần Anh Kiệt, and Phạm Hồng Vinh. “Study on the Stable Shape of Droplets in Two-Phase Contraction Microchannels”. The University of Danang - Journal of Science and Technology, vol. 22, no. 7, July 2024, pp. 22-25, https://jst-ud.vn/jst-ud/article/view/8866.
