Abstract

A nonwetting slug placed at the end of a capillary tube is unstable: a small displacement results in the complete extraction of the liquid from the tube. We study two limiting cases, corresponding to a slug viscosity larger or smaller than that of the surrounding liquid. By varying parameters such as the drop and tube length, we identify in each case the dominant dissipation and describe experimentally and theoretically the dynamics of extraction.

Original languageEnglish
Pages (from-to)9396-9402
Number of pages7
JournalLangmuir
Volume27
Issue number15
DOIs
Publication statusPublished - 2 Aug 2011

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