Marangoni convection at droplet interface during gas-liquid mass transfer

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	Marangoni convection at droplet interface during gas-liquid mass transfer
	Lin, Handan ; Jiao, Fangjian ; Yu, Guangxiong ; Yan, Jun ; Sha, Yong ; Sha Y(沙勇)
刊名	http://dx.doi.org/10.3969/j.issn.0438-1157.2013.08.021
	2013
关键词	Acetone Drops Ethanol Heat convection Liquids Mass transfer Vortex flow
英文摘要	By sweeping binary droplets with N2 gas, the Marangoni convection driven by desorption of light component into gas phase is observed with the help of laser shadowgraph optical method. The results show that Marangoni convection arises as small-scale vortex and large-scale symmetrical circular flow. The small-scale vortex structure appears in the ethanol-water droplet at the very beginning, and then vortex structure develops and merges to form larger vortex flow. At the interface of acetone-water binary droplet, symmetrical circular flow appears at first, and then vortex flow arises in the circular flow. For the quiescent single binary droplet composed of ethanol-water and acetone-water separately, the mass transfer coefficient is measured to compare with theoretical prediction while N2 gas purges the gas-liquid interface. Experimental results show that the large-scale symmetrical circular inside the droplet can promote mass transfer process much better than the small-scale vortex near the interface of droplet. ? All Rights Reserved.
语种	英语
出版者	Chemical Industry Press
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89186]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Lin, Handan,Jiao, Fangjian,Yu, Guangxiong,et al. Marangoni convection at droplet interface during gas-liquid mass transfer[J]. http://dx.doi.org/10.3969/j.issn.0438-1157.2013.08.021,2013.
APA	Lin, Handan,Jiao, Fangjian,Yu, Guangxiong,Yan, Jun,Sha, Yong,&沙勇.(2013).Marangoni convection at droplet interface during gas-liquid mass transfer.http://dx.doi.org/10.3969/j.issn.0438-1157.2013.08.021.
MLA	Lin, Handan,et al."Marangoni convection at droplet interface during gas-liquid mass transfer".http://dx.doi.org/10.3969/j.issn.0438-1157.2013.08.021 (2013).