Nonlinear Rupture Theory of a Thin Liquid Film With Insoluble Surfactant

[+] Author and Article Information
Chi-Chuan Hwang

Department of Mechanical Engineering, Chung Yuan University, Chung-Li, Taiwan 32023

Chaur-Kie Lin

Department of Mechanical Engineering, Chien Hsin College of Technology and Commerce, Chung-Li, Taiwan

Da-Chih Hou, Wu-Yih Uen

Department of Electronic Engineering, Chung Yuan University, Chung-Li Taiwan 32023

Jenn-Sen Lin

Department of Mechanical Engineering, Lien Ho College of Technology and Commerce, Miai-Li, Taiwan 360

J. Fluids Eng 120(3), 598-604 (Sep 01, 1998) (7 pages) doi:10.1115/1.2820706 History: Received March 17, 1997; Revised April 10, 1998; Online January 22, 2008


Effects of insoluble surfactant on the dynamic rupture of a thin liquid film coated on a flat plate are studied. The strong nonlinear evolution equations derived by the integral method are solved by numerical method. The results show that enhancing (weakening) the Marangoni effect (the surface diffusion effect) will delay the rupture process. Furthermore, the rupture time predicted by the integral theory is shorter than that predicted by the long-wave expansion method. In addition, the quantitative difference in the rupture time predicted by two models enlarges with the increase of Marangoni effect, however, without obvious change as the diffusion effect increases.

Copyright © 1998 by The American Society of Mechanical Engineers
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