par Prévost, Martine 
;Gallez, Dominique
Référence AIChE symposium series, 82, 252, page (123-128)
Publication Publié, 1986
;Gallez, Dominique Référence AIChE symposium series, 82, 252, page (123-128)
Publication Publié, 1986
Article révisé par les pairs
| Résumé : | The authors examine nonlinear effects on the stability of a free thin liquid film in a simplified situation where only the influence of Van der Waals interaction is taken into account. First, in the limit of long wavelength of the perturbation, we obtain a nonlinear evolution equation describing the temporal variation of the film thickness along the lateral space dimension in the case of tangentially immobile surfaces. We determine numerically the time of rupture for the film through the amplification of the squeezing mode, this latter being the more appropriate mode leading to rupture. Secondly, we analyze the stability of a film submitted to solutal Marangoni effects at the two surfaces which allows predicting bifurcations to new flow patterns. |
