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Experimental investigation and numerical simulation of Marangoni effect induced by mass transfer during drop formation
Author(s) -
Wang Zhihui,
Lu Ping,
Wang Yang,
Yang Chao,
Mao ZaiSha
Publication year - 2013
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.14161
Subject(s) - marangoni effect , mass transfer , drop (telecommunication) , marangoni number , interphase , mass fraction , mechanics , chemistry , convection , thermodynamics , materials science , chromatography , physics , mechanical engineering , biology , engineering , genetics
Marangoni effect induced by interphase mass transfer plays an important role in liquid–liquid extraction and reaction processes. The interaction of Marangoni effect and interphase mass transfer during drop formation at different injection rates and different initial solute concentrations was investigated by experimental and numerical simulation. The extraction fraction was measured and the corresponding correlation was proposed. The level‐set method coupled with mass‐transfer equation is for the first time used to simulate the mass‐transfer induced Marangoni effect during drop formation. The simulated drop volume, shape, and extraction fraction are in good accordance with experimental data. Through the numerical simulation, it is found that the mass transfer in the first mass‐transfer period is the most efficient during drop formation when Marangoni convection occurs. © 2013 American Institute of Chemical Engineers AIChE J , 59: 4424–4439, 2013