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Capillary spreading of a droplet in the partially wetting regime using a diffuse-interface model
| Content Provider | Semantic Scholar |
|---|---|
| Author | Khatavkar, Vv Vinayak Anderson, Pd Patrick Meijer, Heh Han |
| Copyright Year | 2007 |
| Abstract | The spreading of a liquid droplet on a smooth solid surface in the partially wetting regime is studied using a diuse-in terface model, based on the Cahn-Hilliard theory. Following Jacqmin (2000) the model is extended to include non-90 contact angles. The diuse-in terface model applied considers the ambient uid displaced by the droplet while spreading as a liquid. The governing equations of the model for the axisymmetric case are solved numerically using a nite/sp ectral element method. The viscosity of the ambient uid is found to aect the time scale of spreading, but the general spreading behaviour remains unchanged. Wettability expressed in terms of the equilibrium contact angle is seen to inuence the spreading kinetics from the early stages of spreading. The results show agreement with the experimental data reported in the literature. |
| Starting Page | 367 |
| Ending Page | 387 |
| Page Count | 21 |
| File Format | PDF HTM / HTML |
| DOI | 10.1017/S0022112006003533 |
| Volume Number | 572 |
| Alternate Webpage(s) | http://www.mate.tue.nl/mate/pdfs/6840.pdf |
| Alternate Webpage(s) | https://doi.org/10.1017/S0022112006003533 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
