Drainage induced convection rolls in foams: I. Convective bubble motion in a tilted tube

S. J. Cox; M. D. Alonso; D. Weaire; S. Hutzler

doi:10.1038/laban0106-17

Drainage induced convection rolls in foams: I. Convective bubble motion in a tilted tube

S. J. Cox^*, M. D. Alonso, D. Weaire, S. Hutzler

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

When liquid is added to a foam at sufficiently large flow rates, convective bubble motion will occur. Experiments are described in which the foam is confined in a tube which is tilted from the vertical. The theory of foam drainage is applied to this problem to show that the critical angle of tilt θ_c at which convection occurs is related to the liquid flow-rate Q by θ_c ∝ Q^-3/4.

Original language	English
Pages (from-to)	17-22
Number of pages	6
Journal	European Physical Journal E
Volume	19
Issue number	1
DOIs	https://doi.org/10.1038/laban0106-17
Publication status	Published - Jan 2006

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title = "Drainage induced convection rolls in foams: I. Convective bubble motion in a tilted tube",

abstract = "When liquid is added to a foam at sufficiently large flow rates, convective bubble motion will occur. Experiments are described in which the foam is confined in a tube which is tilted from the vertical. The theory of foam drainage is applied to this problem to show that the critical angle of tilt θc at which convection occurs is related to the liquid flow-rate Q by θc ∝ Q-3/4.",

author = "Cox, {S. J.} and Alonso, {M. D.} and D. Weaire and S. Hutzler",

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AB - When liquid is added to a foam at sufficiently large flow rates, convective bubble motion will occur. Experiments are described in which the foam is confined in a tube which is tilted from the vertical. The theory of foam drainage is applied to this problem to show that the critical angle of tilt θc at which convection occurs is related to the liquid flow-rate Q by θc ∝ Q-3/4.

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Drainage induced convection rolls in foams: I. Convective bubble motion in a tilted tube

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