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	Controllable gas-liquid phase flow patterns and monodisperse microbubbles in a microfluidic T-junction device
	Xu, JH ; Li, SW ; Wang, YJ ; Luo, GS
	2010-05-07 ; 2010-05-07
关键词	DROPLET FORMATION COLUMN FLOTATION GENERATION Physics, Applied
中文摘要	This letter describes the gas-liquid phase flow patterns and the mechanism of generation of monodisperse microbubbles in a T-junction microfluidic device using the crossflowing shear-rupturing technique. The bubble size is ranged from 100 to 500 mu m. The air phase states as isolate air slugs, "pearl necklaces," periodic isolate bubbles, zig-zag bubble patterns, and multiple-bubble layer can be observed in the wider measured channel. The bubble size relates with the continuous phase flow velocity and viscosity as V-b proportional to 1/(mu(c)u(c)), while being almost independent of surface tension gamma and air phase flow rate Q(g), for the conditions used in this work. The bubble formation mechanism by using the crossflowing shear-rupturing technique is different from the hydrodynamic flow focusing and both geometry-dominated breakup techniques. Our system provides independent control of both the size and volume fraction of dispersed bubbles. (c) 2006 American Institute of Physics.
语种	英语 ; 英语
出版者	AMER INST PHYSICS ; MELVILLE ; CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/17697]
专题	清华大学
推荐引用方式 GB/T 7714	Xu, JH,Li, SW,Wang, YJ,et al. Controllable gas-liquid phase flow patterns and monodisperse microbubbles in a microfluidic T-junction device[J],2010, 2010.
APA	Xu, JH,Li, SW,Wang, YJ,&Luo, GS.(2010).Controllable gas-liquid phase flow patterns and monodisperse microbubbles in a microfluidic T-junction device..
MLA	Xu, JH,et al."Controllable gas-liquid phase flow patterns and monodisperse microbubbles in a microfluidic T-junction device".(2010).

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