MIXING PROCESS WITH VOLUME CHANGE

Authors
BROCHARDWYART F DEGENNES PG
Citation
F. Brochardwyart et Pg. Degennes, MIXING PROCESS WITH VOLUME CHANGE, Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 318(1), 1994, pp. 27-30
Citations number
2
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre → ACNP
ISSN journal
07644450
Volume
318
Issue
1
Year of publication
1994
Part
1
Pages
27 - 30
Database
ISI
SICI code
0764-4450(1994)318:1<27:MPWVC>2.0.ZU;2-D
Abstract
We consider a diffuse interface [thickness e(t)] between two miscible fluids A, B. We assume that the AB mixture has a density larger (or lo wer) than A or B: a horizontal interface should then be gravitationall y unstable, and split up into droplets of the AB mixture. We construct a naive picture for the linear instabilities: this leads to droplets of size similar to 10 mu m, with rise times similar to 0.1 sec.