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. 2008 May-Jun;26(1-2):81-9.
doi: 10.1140/epje/i2007-10286-0. Epub 2008 Apr 11.

Simulations of two-dimensional foam rheology: localization in linear Couette flow and the interaction of settling discs

A Wyn  1 , I T Davies, S J Cox
Affiliations

Simulations of two-dimensional foam rheology: localization in linear Couette flow and the interaction of settling discs

A Wyn et al. Eur Phys J E Soft Matter. 2008 May-Jun.

Abstract

Surface Evolver simulations of flowing two-dimensional foams are described. These are used for two purposes. Firstly, to extract the location of the T 1s, the changes in bubble topology that occur during plastic flow. It is shown that in linear Couette flow the T1 s are localized in space, becoming more so as the polydispersity of the foam decreases. Secondly, the sedimentation of two circular discs through a foam under gravity is studied. If the discs are sufficiently close, they begin to interact and one moves behind the other during their descent.

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