Preferred sizes and ordering in surface nanobubble populations

Bram M. Borkent, Holger Schönherr, Gérard Le Caër, Benjamin Dollet, Detlef Lohse

Research output: Contribution to journalArticleAcademicpeer-review

23 Citations (Scopus)
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Abstract

Two types of homogeneous surface nanobubble populations, created by different means, are analyzed statistically on both their sizes and spatial positions. In the first type (created by droplet deposition, case A) the bubble size R is found to be distributed according to a generalized gamma law with a preferred radius R*=20 nm. The radial distribution function shows a preferred spacing at ~5.5R*. These characteristics do not show up in comparable Monte Carlo simulated configurations of random packings of hard disks with the same size distribution and the same density, suggesting a structuring effect in the nanobubble formation process. The nanobubble size distribution of the second population type (created by ethanol-water exchange, case B) is a mixture of two clearly separated distributions, hence, with two preferred radii. The local ordering is less significant, due to the looser packing of the nanobubbles.
Original languageEnglish
Article number036315
Number of pages4
JournalPhysical review E: Statistical, nonlinear, and soft matter physics
Volume80
Issue number3
DOIs
Publication statusPublished - 2009

Keywords

  • METIS-258757
  • IR-68548

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