Marangoni instability in ultrathin two-layer films
| Autor: | I. B. Simanovskii, A. A. Nepomnyashchy |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics Marangoni effect Deformation (mechanics) Condensed matter physics Mechanical Engineering Computational Mechanics Thermodynamics Marangoni number Substrate (electronics) Condensed Matter Physics Plateau (mathematics) Physics::Fluid Dynamics symbols.namesake Nonlinear system Mechanics of Materials symbols van der Waals force Stratified flow |
| Zdroj: | Physics of Fluids. 19:122103 |
| ISSN: | 1089-7666 1070-6631 |
| DOI: | 10.1063/1.2819748 |
| Popis: | The development of instabilities under the joint action of the van der Waals forces and Marangoni stresses in a two-layer film on a heated or cooled substrate, is considered. The problem is solved by means of a linear stability theory and nonlinear simulations. Nontrivial change of the droplet shape in the presence of the Marangoni effect, which manifests itself as the deformation of a “plateau” into an “inkpot,” is observed. The appearance of the threshold oscillations predicted by the linear stability theory is confirmed by nonlinear simulations. |
| Databáze: | OpenAIRE |
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