title: Jet impact on a soap film.
abstract: We experimentally investigate the impact of a liquid jet on a soap film. We observe that the jet never breaks the film and that two qualitatively different steady regimes may occur. The first one is a refractionlike behavior obtained at small incidence angles when the jet crosses the film and is deflected by the film-jet interaction. For larger incidence angles, the jet is absorbed by the film, giving rise to a new class of flows in which the jet undulates along the film with a characteristic wavelength. Besides its fundamental interest, this paper presents a different way to guide a micrometric flow of liquid in the inertial regime and to probe foam stability submitted to violent perturbations at the soap film scale.
authors.affiliation: Laboratoire de Physique de la Matière Condensée, CNRS UMR 7336, Université de Nice Sophia-Antipolis, 06108 Nice, France.
authors.forename: Geoffroy
authors.initials: G
authors.lastname: Kirstetter
authors.forename: Christophe
authors.initials: C
authors.lastname: Raufaste
authors.forename: Franck
authors.initials: F
authors.lastname: Celestini
mesh_terms: D003198:Computer Simulation; D008567:Membranes, Artificial; D044085:Microfluidics / Q000379:methods*; D008956:Models, Chemical; D009038:Motion; D012915:Soaps / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D008567:Membranes, Artificial; D012915:Soaps; D012996:Solutions