QQ客服 官方微博 反馈留言

	MARANGONI ASYMMETRICAL INSTABILITY IN A T-JUNCTION MICROCHANNEL WITH AN OPEN OUTLET
	Pan, Zhenhai ; Wang, Hao
	2012
关键词	Evaporation Marangoni instability Microchannel Asymmetrical Pumping EVAPORATING MENISCUS THERMOCAPILLARY CONVECTION PATTERNS
DOI	10.1115/MNHMT2012-75164
英文摘要	The Marangoni convections in microchannels are of interest in various applications such as heat transfer, material and microfluidics. In this paper, the Marangoni asymmetrical instability at a T-junction in a microchannel is investigated. The T-junction is formed by a main channel which water going through and a side channel which is open to the ambient. A convex meniscus is formed in side channel near the T-junction, evaporating/volatizing into the ambient. The consumption of water due to the evaporation is compensated by the supply from the main channel. It is found that for weak evaporations, the evaporation-induced Marangoni convections are symmetrical. However, when the evaporation reaches a critical intensity, the symmetrical Marangoni convection becomes unstable and evolves into an asymmetrical one, with one single vortex under the meniscus. More interestingly, the vortex creates a steady convection through the main channel from its one end to the other, just like a pump. The pumping flow rate is found linearly correlated with the Marangoni number at the T-junction.; Engineering, Mechanical; Nanoscience & Nanotechnology; EI; CPCI-S(ISTP); 0
语种	英语
内容类型	会议论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/316402]
专题	工学院
推荐引用方式 GB/T 7714	Pan, Zhenhai,Wang, Hao. MARANGONI ASYMMETRICAL INSTABILITY IN A T-JUNCTION MICROCHANNEL WITH AN OPEN OUTLET[C]. 见:.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。