Europhys. Lett.
Volume 75, Number 1, July 2006
Page(s) 112 - 118
Section Condensed matter: structural, mechanical and thermal properties
Published online 31 May 2006
Europhys. Lett., 75 (1), pp. 112-118 (2006)
DOI: 10.1209/epl/i2006-10076-x

Soret effect in thin liquid films: Localized running drops, holes and stripes

I. D. Borcia1, 2, R. Borcia1 and M. Bestehorn1

1  Department of Theoretical Physics II, Brandenburg University of Technology Erich-Weinert-Strasse 1, 03046-Cottbus, Germany
2  "Alexandru Ioan Cuza" University, Faculty of Physics Department of Solid State & Theoretical Physics Blvd. Carol I, 11, 700506-Iasi, Romania

received 20 February 2006; accepted in final form 10 May 2006
published online 31 May 2006

We examine oscillatory instabilities occurring in a thin liquid film of a binary mixture with large lateral extension. The theoretical model is based on the long-wave approximation for thin films. Linear stability analysis is performed in order to predict the film behavior at onset. Applying 2D and 3D nonlinear simulations soliton-like structures are observed in the oscillatory regime.

68.15.+e - Liquid thin films.
47.54.-r - Fluid dynamics: Pattern selection, pattern formation.
64.75.+g - Solubility, segregation, and mixing; phase separation.

© EDP Sciences 2006