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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

Teixeira, MAC (Autor) Outra; Arscott, S (Autor) Outra; Cox, SJ (Autor) Outra; Teixeira, PIC (Autor) Outra

Revista

Título: Langmuir

Vol. 31

ISSN: 0743-7463

Editora: American Chemical Society

Indexação

ISI Web of Knowledge - 20 Citações

Scopus - 22 Citações

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10