Unsteady motion of a single droplet in surfactant solutions

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	Unsteady motion of a single droplet in surfactant solutions
	Li, XJ ; Mao, ZS ; Fei, WY
刊名	CHINESE JOURNAL OF CHEMICAL ENGINEERING
	2003-12-01
卷号	11 期号:6 页码:715-725
关键词	surfactant single drop unsteady motion sorption kinetics numerical simulation
ISSN号	1004-9541
其他题名	Chin. J. Chem. Eng.
中文摘要	A numerical investigation of the unsteady motion of a deformed drop released freely in another quiescent liquid contaminated by surfactant is presented in this paper. The finite difference method was used to solve numerically the coupled time-dependent Navier-Stokes and convective-diffusion equations in a body-fitted orthogonal coordinate system. Numerical simulation was conducted on the experimental cases, in which MIBK drops with the size ranging from 1.24 mm to 1.97 mm. rose and accelerated freely in pure water and in dilute sodium dodecyl sulphate (SDS) aqueous solution. The applicability of the numerical scheme was validated by the agreement between the simulation results and the experimental data. Both the numerical and experimental results showed that the velocity-time profile exhibited a maximum rising velocity for drops in SDS solutions, which was close to the terminal velocity in pure water, before it dropped down to a steady-state value. The effect of the sorption kinetics of surfactant on the accelerating motion was also evaluated. It is also suggested that introduction of virtual mass force into the formulation improved obviously the precision of numerical simulation of transient drop motion.
英文摘要	A numerical investigation of the unsteady motion of a deformed drop released freely in another quiescent liquid contaminated by surfactant is presented in this paper. The finite difference method was used to solve numerically the coupled time-dependent Navier-Stokes and convective-diffusion equations in a body-fitted orthogonal coordinate system. Numerical simulation was conducted on the experimental cases, in which MIBK drops with the size ranging from 1.24 mm to 1.97 mm. rose and accelerated freely in pure water and in dilute sodium dodecyl sulphate (SDS) aqueous solution. The applicability of the numerical scheme was validated by the agreement between the simulation results and the experimental data. Both the numerical and experimental results showed that the velocity-time profile exhibited a maximum rising velocity for drops in SDS solutions, which was close to the terminal velocity in pure water, before it dropped down to a steady-state value. The effect of the sorption kinetics of surfactant on the accelerating motion was also evaluated. It is also suggested that introduction of virtual mass force into the formulation improved obviously the precision of numerical simulation of transient drop motion.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	INTERMEDIATE REYNOLDS-NUMBERS ; SOLVENT-EXTRACTION SYSTEMS ; FREE-BOUNDARY PROBLEMS ; MASS-TRANSFER ; BUBBLE MOTION ; NUMERICAL-SIMULATION ; FLOW ; RESISTANCE ; LIQUID
收录类别	SCI
原文出处	://WOS:000187739500019
语种	英语
WOS记录号	WOS:000187739500019
公开日期	2013-11-08
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/5369]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China 2.Tsing Hua Univ, State Key Lab Chem Engn, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Li, XJ,Mao, ZS,Fei, WY. Unsteady motion of a single droplet in surfactant solutions[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2003,11(6):715-725.
APA	Li, XJ,Mao, ZS,&Fei, WY.(2003).Unsteady motion of a single droplet in surfactant solutions.CHINESE JOURNAL OF CHEMICAL ENGINEERING,11(6),715-725.
MLA	Li, XJ,et al."Unsteady motion of a single droplet in surfactant solutions".CHINESE JOURNAL OF CHEMICAL ENGINEERING 11.6(2003):715-725.