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Advances in Mechanical Engineering
Volume 2012 (2012), Article ID 231675, 8 pages
http://dx.doi.org/10.1155/2012/231675
Research Article

Numerical Simulation and Analysis of Gas-Liquid Flow in a T-Junction Microchannel

1Department of Mathematics, East China University of Science and Technology, Shanghai 200237, China
2Department of Basic Courses, Viet Duc Industrial College, Thainguyen 23000, Vietnam
3Complex and Intelligent Systems Research Centre, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China

Received 6 June 2012; Revised 19 July 2012; Accepted 21 July 2012

Academic Editor: Shandong Tu

Copyright © 2012 Hongtruong Pham et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Gas-liquid flow in microchannels is widely used in biomedicine, nanotech, sewage treatment, and so forth. Particularly, owing to the high qualities of the microbubbles and spheres produced in microchannels, it has a great potential to be used in ultrasound imaging and controlled drug release areas; therefore, gas-liquid flow in microchannels has been the focus in recent years. In this paper, numerical simulation of gas-liquid flows in a T-junction microchannel was carried out with computational fluid dynamics (CFD) software FLUENT and the Volume-of-Fluid (VOF) model. The distribution of velocity, pressure, and phase of fluid in the microchannel was obtained, the pressure distribution along the channel walls was analyzed in order to give a better understanding on the formation of microbubbles in the T-junction microchannel.