On skirted drops in an immiscible liquid

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5 Citations (Scopus)

Abstract

Large drops rising or sinking in an immiscible liquid can develop thin trailing structures commonly referred to as “skirts”. The paper describes a mathematical model for the thickness of these skirts accounting for the viscous boundary layer that develops along the surface of the parent drop and of the skirt itself. Unlike earlier theories, the skirt thickness is found to decrease with distance from the drop rim, which illuminates the mechanism which terminates the skirt at a finite length. A scaling of the skirt length is suggested by an analysis of published data, which also leads to a scaling for the volume of liquid in the skirt. The theoretical predictions are compared with the few experimental results for which sufficiently detailed information is available.
Original languageEnglish
Pages (from-to)213-222
Number of pages10
JournalChemical engineering science
Volume108
DOIs
Publication statusPublished - 2014

Keywords

  • IR-94895
  • METIS-304681

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