LG14014E - 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 refraction-like 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 flow in which the jet undulates along the film with a characteristic wavelength. Besides its fundamental interest, this study
presents a new way to guide a micro-metric flow of liquid in the inertial
regime and to probe foam stability submitted to violent perturbations
at the soap film scale.
Saturday, August 25, 2012
Jet impact on a soap film
LG14014E - 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 refraction-like 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 flow in which the jet undulates along the film with a characteristic wavelength. Besides its fundamental interest, this study
presents a new way to guide a micro-metric flow of liquid in the inertial
regime and to probe foam stability submitted to violent perturbations
at the soap film scale.
