Abstract

We investigate the dynamics of bubble rearrangements in coarsening foams, using a time-resolved multiple light scattering technique. We measure the average duration of such events as a function of the foam confinement pressure. Rearrangements slow down as the pressure is decreased toward the jamming point. Our results are explained by a scaling law based on the balance of pressure and Darcy flow, highlighting an analogy between wet foams with mobile interfaces and suspensions of hard grains.

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Publisher Full Text

Authors

Le Merrer M, Cohen-Addad S, Höhler R

Institution

Université Paris 6, UMR 7588 CNRS-UPMC, INSP, 4 place Jussieu, 75252 Paris cedex 05, France.

Source

Physical review letters 108:18 2012 May 4 pg 188301

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22681122