par Kaya, HAKON ;Jérôme, B.;Colinet, Pierre
Référence Europhysics letters, 74, 5, page (861-867)
Publication Publié, 2006
Article révisé par les pairs
Résumé : Recently it was demonstrated that the presence of density variations in thin films can induce interactions that cause destabilization and rupture of thin films. In apolar films the surface tension is also dependent on the film density, so that a lateral variation in film density creates a surface tension gradient, thus producing a Marangoni effect. We include this effect in the hydrodynamic equation governing the evolution of the film profile and perform an analysis of the stability of the film. In particular, inclusion of the Marangoni effect causes the characteristic length scale of the initial flat film instabilities to scale with the film thickness h0 to a lower power (down to n = 0.5) than without this effect.