title: Structures of a continuously fed two-dimensional viscous film under a destabilizing gravitational force.
abstract: We study the gravity induced instability of a liquid film formed below a plane grid which is used as a porous media in an original hydrodynamic experiment. The film is continuously supplied with a controlled flow rate. We give through a phase diagram the full spectrum of the different flow regimes and we investigate the dynamics of the observed structures. True secondary instabilities of a 2D periodic pattern are described. The control parameters are the flow rate and the viscosity.
authors.affiliation: Institut du Non Linéaire de Nice (UMR CNRS 6618), Université de Nice Sophia Antipolis, 1361 Route des Lucioles, F-06560 Valbonne, France. Christophe.Pirat@inln.cnrs.fr
authors.forename: C
authors.initials: C
authors.lastname: Pirat
authors.forename: C
authors.initials: C
authors.lastname: Mathis
authors.forename: P
authors.initials: P
authors.lastname: Maïssa
authors.forename: L
authors.initials: L
authors.lastname: Gil