Work

Self-similar and universal dynamics in drainage of mobile soap films

Year: 2024

Type: article

Abstract: We experimentally investigated the drainage of vertical rectangular soap films as they thin under gravity. Drainage dynamics were measured by tracking isothickness interference fringes. We showed that the downward motion of these fringes is self-similar with a power-law time evolution, or equivalently, that the thickness profiles exhibit space-time separation. By combining our data with previous studies, we collapsed all profiles onto a single curve, demonstrating the universality of this phenomenon. These findings are important for studying liquid foams and marginal regeneration instability.

Source: Physical Review Fluids

DOI: 10.1103/physrevfluids.9.124001

Authors: Antoine Monier, François-Xavier Gauci, Cyrille Claudet, Franck Celestini, Christophe Brouzet, Christophe Raufaste

Institutions: Centre National de la Recherche Scientifique, Université Côte d'Azur, Institut de Physique de Nice, Institut Universitaire de France

Language: English

Topic: Fluid Dynamics and Thin Films

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: Agence Nationale de la Recherche

Award: Stability of foam films: marginal regeneration and drainage