What is the Shape of an Air Bubble on a Liquid Surface?

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Teixeira, MAC (Author) Other; Arscott, S (Author) Other; Cox, SJ (Author) Other; Teixeira, PIC (Author) Other

Journal

Title: Langmuir

Vol. 31

ISSN: 0743-7463

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 20 Citations

Scopus - 22 Citations

Other information

Authenticus ID: P-00J-ZX0

DOI: 10.1021/acs.langmuir.5b03970

Abstract (EN): We have calculated the equilibrium shape of the axially symmetric meniscus along which a spherical bubble contacts a flat liquid surface by analytically integrating the Young-Laplace equation in the presence of gravity, in the limit of large Bond numbers. This method has the advantage that it provides semianalytical expressions for key geometrical properties of the bubble in terms of the Bond number. Results are in good overall agreement with experimental data and are consistent with fully numerical (Surface Evolver) calculations. In particular, we are able to describe how the bubble shape changes from hemispherical, with a flat, shallow bottom, to lenticular, with a deeper, curved bottom, as the Bond number is decreased.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10