Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/101672
Title: Experimental and computational analysis of droplet formation in a high-performance flow-focusing geometry
Authors: Ong, Wee-Liat
Hua, Jinsong
Zhang, Baili
Teo, Teng-Yuan
Zhuo, Junlong
Nguyen, Nam-Trung
Ranganathan, Nagarajan
Yobas, Levent
Keywords: DRNTU::Engineering::Chemical engineering::Fuel
DRNTU::Engineering::Mechanical engineering::Fluid mechanics
Issue Date: 2007
Source: Ong, W. L., Hua, J., Zhang, B., Teo, T. Y., Zhuo, J., Nguyen, N. T., Ranganathan, N.,& Yobas, L. (2007). Experimental and computational analysis of droplet formation in a high-performance flow-focusing geometry. Sensors and actuators A : physical, 138(1), 203-212.
Series/Report no.: Sensors and actuators A : physical
Abstract: Detailed experimental and simulation studies are performed and presented to further substantiate the previously reported high-performance flow-focusing geometry for droplet generation. In this geometry, water-in-oil droplets are formed through a three-dimensional (3D) circular orifice directly integrated inside a silicon microchannel. The geometry ensures controlled breakup of droplets for a wide range of flow rates. Simulations are provided using computational fluid dynamics software to elucidate the flow behavior nearby the 3D circular orifice. In addition, experimental results on the droplet generation characteristics are obtained both from the 3D circular constriction as well as quasi-2D (2D) rectangular constriction that are typically used in flow-focusing devices. Direct comparison of these results further supports the claim that droplets formed by the 3D circular orifice show noticeably increased sensitivity against the flow rate of the continuous oil-phase both in droplet size and generation frequency.
URI: https://hdl.handle.net/10356/101672
http://hdl.handle.net/10220/23937
ISSN: 0924-4247
DOI: 10.1016/j.sna.2007.04.053
Rights: © 2007 Elsevier B.V.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MAE Journal Articles

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