Effective diffusion coefficient including the Marangoni effect

Hiroyuki Kitahata, Natsuhiko Yoshinaga

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Surface-active molecules supplied from a particle fixed at the water surface create a spatial gradient of the molecule concentration, resulting in Marangoni convection. Convective flow transports the molecules far from the particle, enhancing diffusion. We analytically derive the effective diffusion coefficient associated with the Marangoni convection rolls. The resulting estimated effective diffusion coefficient is consistent with our numerical results and the apparent diffusion coefficient measured in experiments.

Original languageEnglish
Article number134906
JournalJournal of Chemical Physics
Volume148
Issue number13
DOIs
Publication statusPublished - 2018 Apr 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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