13 June 2018 Three-dimensional numerical simulation of a droplet generation in a double T-junction microchannel
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Abstract
With MEMS technology developing rapidly, the microfluidic droplet technology has been employed into many biological or chemical experiments. To satisfy the increasingly high demands in various applications of the microfluidic chips, the size of the droplet needs accurate control. We have designed and performed a three-dimensional numerical simulation of a droplet generation in a double T-junction microchannel by a level-set method in COMSOL5.0 for discussing the process of the droplet formation and the influences on the size of the droplet. We have studied out that the flow rate ratio, the continuous phase viscosity, the interfacial tension, and the contact angle influence the size of the droplet. The effective droplet diameter increases when the flow rate ratio and the interfacial tension increase. It decreases when the continuous phase viscosity and the contact angle increase.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
Wenbo Han, Wenbo Han, Xueye Chen, Xueye Chen, Zengliang Hu, Zengliang Hu, Kun Yang, Kun Yang, } "Three-dimensional numerical simulation of a droplet generation in a double T-junction microchannel," Journal of Micro/Nanolithography, MEMS, and MOEMS 17(2), 025502 (13 June 2018). https://doi.org/10.1117/1.JMM.17.2.025502 . Submission: Received: 21 February 2018; Accepted: 24 May 2018
Received: 21 February 2018; Accepted: 24 May 2018; Published: 13 June 2018
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