Effects of surface-active agents on bubble growth and detachment from submerged orifice

被引：16

作者：

Babu, R. ^{[1
]}

Das, Malay K. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Mech Engn, Energy Convers & Storage Lab, Kanpur 208016, Uttar Pradesh, India

来源：

CHEMICAL ENGINEERING SCIENCE | 2018年 / 179卷

关键词：

Bubble growth; Dynamic surface tension; Surface tension gradient; Surfactant; Particle image velocimetry; High speed imaging; CAPILLARY; TENSION;

D O I：

10.1016/j.ces.2018.01.028

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Present study deals with the effects of surfactants on the dynamics of bubble growth and detachment from a submerged orifice. Experiments are conducted to study the quasi-static growth of air bubble in de-ionized (DI) water mixed with nonionic surfactant Triton X-100. For comparison, bubble growth in pure DI water is also studied. While high-speed imaging is used for flow visualization, instantaneous velocity field, at different stages of bubble growth, are captured via particle image velocimetry. The study also uses bubble pressure Tensiometer technique and Goniometer for measuring the surface tensions. Present investigation shows that the bubble detachment volume decreases with the increase in the surfactant concentration. Further, for low concentration of surfactant, the surface tension gradient influences the flow field significantly and aid the bubble detachment. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：172 / 184

页数：13

共 30 条

[1] On the analysis of bubble growth and detachment at low Capillary and Bond numbers using Volume of Fluid and Level Set methods [J].

Albadawi, A. ;

Donoghue, D. B. ;

Robinson, A. J. ;

Murray, D. B. ;

Delaure, Y. M. C. .

CHEMICAL ENGINEERING SCIENCE, 2013, 90 :77-91

[2]

Allen R. A., 2014, PHOTOELECTROCHEMICAL

[3]

Ambwani D.S., 1979, SURFACE COLLOID SCI, P93, DOI [DOI 10.1007/978-1-4615-7969-4_3, DOI 10.1007/978-1-4615-7969-43]

[4]

[Anonymous], 1995, Dynamics of Adsorption at Liquid Interfaces: Theory, Experiment, Application

[5] Bubbles in an acoustic field: An overview [J].

Ashokkumar, Muthupandian ;

Lee, Judy ;

Kentish, Sandra ;

Grieser, Franz .

ULTRASONICS SONOCHEMISTRY, 2007, 14 (04) :470-475

[6] Computational investigation on bubble detachment from submerged orifice in quiescent liquid under normal and reduced gravity [J].

Chakraborty, I. ;

Ray, B. ;

Biswas, G. ;

Durst, F. ;

Sharma, A. ;

Ghoshdastidar, P. S. .

PHYSICS OF FLUIDS, 2009, 21 (06)

[7] Bubble evolution through submerged orifice using smoothed particle hydrodynamics: Basic formulation and model validation [J].

Das, A. K. ;

Das, P. K. .

CHEMICAL ENGINEERING SCIENCE, 2009, 64 (10) :2281-2290

[8]

Deodhar A. M., 2012, COMPUTATIONAL STUDY

[9] Experimental study of gas injected bubble growth from submerged orifices [J].

Di Bari, Sergio ;

Robinson, Anthony J. .

EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2013, 44 :124-137

[10] Experimental investigation of bubble and drop formation at submerged orifices [J].

Dietrich, Nicolas ;

Mayoufi, Nadia ;

Poncin, Souhil ;

Li, Huai-Zhi .

CHEMICAL PAPERS, 2013, 67 (03) :313-325

← 1 2 3 →