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Nonlinear Spreading Dynamics of a Localized Soluble Surfactant on a Thin Liquid Film
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lin, Chaur-Kie Hwang, Chi-Chuan Huang, Gwo-Jiunn |
| Copyright Year | 2002 |
| Abstract | This paper focuses on the study of the spreading behavior of soluble surfactant in a thin liquid film system. For the convenience of numerical calculation, the system coordinate of the evolution equation is transformed. The generalized Frumkin model is used to simulate the adsorption/desorption process of soluble surfactant. Nonlinear coupling evolution equations are derived using the long-wave approximation and the cross-sectional averaging method. The spreading rate of a liquid film predicted by the generalized Frumkin model is faster than predicted by the Langmuir model. When the prediction using the generalized Frumkin model is performed at a smaller β (relative surface concentration), the effect of solubility of surfactant will be enhanced. Consequently, a small β will lead to the acceleration of spreading behavior; however, contrary results will come out while the value of β exceeds 2.0. The dimensionless bulk diffusion constant D 1 (the molecular interaction parameter, K and the activation energy o. |
| Starting Page | 2708 |
| Ending Page | 2714 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1143/JPSJ.71.2708 |
| Volume Number | 71 |
| Alternate Webpage(s) | http://lab.es.ncku.edu.tw/hwangcc/t/paper/paper-pdf/084.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
