[Evolution de l'aire interfaciale volumique dans les mélanges diphasiques]
Nous cherchons à décrire l'évolution temporelle de la densité d'interfaces dans un mélange diphasique. L'accent est mis sur les effets de la compressibilité, de la dilatabilité et des changements de phase. Deux chemins complémentaires sont suivis : le premier, assez intuitif, est basé sur des résultats concernant les mélanges dilués, résultats qui sont ensuite interpolés à toute concentration ; le second, plus systématique, est basé sur la moyenne statistique de l'équation qui régit l'évolution temporelle d'un élément d'interface.
We investigate the time evolution of the density of interfaces in a two-phase mixture, with particular emphasis on the role of compressibility, dilatability and phase transitions. Two different and complementary routes are considered: a rather intuitive one based on exact results for dilute mixtures which are then interpolated to all concentrations, and a more systematic approach based on the statistical average of the exact transport equation for elementary pieces of interfaces.
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Mot clés : Rhéologie, Aire interfaciale, Équation de transport, Mélanges diphasiques
@article{CRMECA_2004__332_2_103_0,
author = {Daniel Lhuillier},
title = {Evolution of the volumetric interfacial area in two-phase mixtures},
journal = {Comptes Rendus. M\'ecanique},
pages = {103--108},
publisher = {Elsevier},
volume = {332},
number = {2},
year = {2004},
doi = {10.1016/j.crme.2003.12.004},
language = {en},
}
Daniel Lhuillier. Evolution of the volumetric interfacial area in two-phase mixtures. Comptes Rendus. Mécanique, Volume 332 (2004) no. 2, pp. 103-108. doi : 10.1016/j.crme.2003.12.004. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2003.12.004/
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Dynamics of interfaces and rheology of immiscible liquid–liquid mixtures
Daniel Lhuillier
C. R. Méca (2003)