Simulation of surfactant transport during the rheological relaxation of two-dimensional dry foams

F. Zaccagnino, A. Audebert, S. J. Cox

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Abstract

We describe a numerical model to predict the rheology of two-dimensional dry foams. The model accurately describes soap film curvature and viscous friction with the walls, and includes the transport of surfactant within the films and across the vertices where films meet. It accommodates the changes in foam topology that occur when a foam flows and, in particular, accurately represents the relaxation of the foam following a topological change. The model is validated against experimental data, allowing the prediction of elastic and viscous parameters associated with different surfactant solutions
Original languageEnglish
Article number022801
JournalPhysical Review E
Volume98
Issue number2
DOIs
Publication statusPublished - 14 Aug 2018

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