Dissipation in a Sheared Foam: From Bubble Adhesion to Foam Rheology

Sébastien Besson, Georges Debrégeas, Sylvie Cohen-Addad, and Reinhard Höhler
Phys. Rev. Lett. 101, 214504 – Published 20 November 2008

Abstract

The link between the rheology of 3D aqueous foam and the adhesion of neighboring bubbles is tested by confronting experiments at two different length scales. On the one hand, the dynamics of adhesion are probed by measuring how the shape of two bubbles in contact changes as their center-to-center distance is modulated. On the other hand, the linear viscoelastic behavior of 3D foam prepared with the same soapy solution is characterized by its complex shear modulus. To connect the two sets of data, we present a model of foam viscoelasticity taking into account bubble adhesion.

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  • Received 8 July 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.214504

©2008 American Physical Society

Authors & Affiliations

Sébastien Besson* and Georges Debrégeas

  • Laboratoire de Physique Statistique, CNRS UMR 8550, 24, rue Lhomond, 75231 Paris Cedex 05, France

Sylvie Cohen-Addad and Reinhard Höhler

  • Université Paris-Est, Laboratoire de Physique des Matériaux Divisés et des Interfaces, UMR 8108 du CNRS, 5, boulevard Descartes, Champs-sur-Marne, 77454 Marne-la-Vallée Cedex 2, France

  • *sbesson@oeb.harvard.edu

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Issue

Vol. 101, Iss. 21 — 21 November 2008

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