Drag coefficient of a spherical droplet immersed in a near-critical binary fluid mixture

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Abstract

We consider a spherical liquid droplet immersed in a near-critical binary fluid mixture. Aweak preferential attraction is assumed between the droplet and one of the two mixture components, and the difference in the viscosity is neglected between the mixture components. Using the Gaussian free-energy functional, we calculate the drag coefficient of a droplet. Whether it is increased or decreased by the preferential attraction turns out to depend on the bulk correlation length and the ratio of the viscosity of the surrounding mixture to that of the droplet.

Original languageEnglish
Article number024401
JournalJournal of the Physical Society of Japan
Volume83
Issue number2
DOIs
Publication statusPublished - 2014 Feb 15

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binary fluids
drag coefficients
attraction
viscosity
free energy
liquids

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Drag coefficient of a spherical droplet immersed in a near-critical binary fluid mixture. / Fujitani, Youhei.

In: Journal of the Physical Society of Japan, Vol. 83, No. 2, 024401, 15.02.2014.

Research output: Contribution to journalArticle

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