Simulations of two-dimensional foam rheologyLocalization in linear Couette flow and the interaction of settling discs

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Simulations of two-dimensional foam rheology : Localization in linear Couette flow and the interaction of settling discs. / Wyn, Aled; Davies, Ioan Tudur; Cox, Simon John.

In: European Physical Journal E, Vol. 26, No. 1, 05.2008, p. 81-89.

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@article{6d7010ecba40455d81962f4a2b153245,
title = "Simulations of two-dimensional foam rheology: Localization in linear Couette flow and the interaction of settling discs",
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 1 s, the changes in bubble topology that occur during plastic flow. It is shown that in linear Couette flow the T 1 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.",
keywords = "47.57.Bc Foams and emulsions, 83.80.Iz Emulsions and foams, 83.50.Ax Steady shear flows, viscometric flow",
author = "Aled Wyn and Davies, {Ioan Tudur} and Cox, {Simon John}",
note = "Wyn, A., Davies, I. T., Cox, S. J. (2008). Simulations of two-dimensional foam rheology: localization in linear Couette flow and the interaction of settling discs. European Physical Journal E, 26 (1-2), 81-89. Sponsorship: We thank K. Brakke for developing, dis-tributing and supporting the Surface Evolver and for providing the script to generate Voronoi input. This work benefited from discussions with D. Weaire, K. Krishan and F. Graner. Financial support is gratefully acknowledged from EPSRC (EP/D048397/1,EP/D071127/1) and the British Council Alliance programme.",
year = "2008",
month = may,
doi = "10.1140/epje/i2007-10286-0",
language = "English",
volume = "26",
pages = "81--89",
journal = "European Physical Journal E",
issn = "1292-8941",
publisher = "Springer Nature",
number = "1",

}

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TY - JOUR

T1 - Simulations of two-dimensional foam rheology

T2 - Localization in linear Couette flow and the interaction of settling discs

AU - Wyn, Aled

AU - Davies, Ioan Tudur

AU - Cox, Simon John

N1 - Wyn, A., Davies, I. T., Cox, S. J. (2008). Simulations of two-dimensional foam rheology: localization in linear Couette flow and the interaction of settling discs. European Physical Journal E, 26 (1-2), 81-89. Sponsorship: We thank K. Brakke for developing, dis-tributing and supporting the Surface Evolver and for providing the script to generate Voronoi input. This work benefited from discussions with D. Weaire, K. Krishan and F. Graner. Financial support is gratefully acknowledged from EPSRC (EP/D048397/1,EP/D071127/1) and the British Council Alliance programme.

PY - 2008/5

Y1 - 2008/5

N2 - Surface Evolver simulations of flowing two-dimensional foams are described. These are used for two purposes. Firstly, to extract the location of the T 1 s, the changes in bubble topology that occur during plastic flow. It is shown that in linear Couette flow the T 1 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.

AB - Surface Evolver simulations of flowing two-dimensional foams are described. These are used for two purposes. Firstly, to extract the location of the T 1 s, the changes in bubble topology that occur during plastic flow. It is shown that in linear Couette flow the T 1 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.

KW - 47.57.Bc Foams and emulsions

KW - 83.80.Iz Emulsions and foams

KW - 83.50.Ax Steady shear flows

KW - viscometric flow

UR - http://hdl.handle.net/2160/551

U2 - 10.1140/epje/i2007-10286-0

DO - 10.1140/epje/i2007-10286-0

M3 - Article

C2 - 18404249

VL - 26

SP - 81

EP - 89

JO - European Physical Journal E

JF - European Physical Journal E

SN - 1292-8941

IS - 1

ER -

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