Volume 56, Number 4, November 2001
|Page(s)||556 - 562|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 December 2003|
Phase ordering of two-dimensional symmetric binary fluids: A droplet scaling state
Department of Physics and Astronomy, University of Edinburgh
JCMB Kings Buildings - Mayfield Road, Edinburgh EH9 3JZ, UK
Accepted: 22 August 2001
The late-stage phase ordering, in d=2 dimensions, of symmetric fluid mixtures violates dynamical scaling. We show however that, even at 50/50 volume fractions, if an asymmetric droplet morphology is initially present then this sustains itself, throughout the viscous hydrodynamic regime, by a "coalescence-induced coalescence" mechanism. Scaling is recovered (with length scale , as in d=3). The crossover to the inertial hydrodynamic regime is delayed even longer than in d=3; on entering it, full symmetry is finally restored and we find , regardless of the initial state.
PACS: 64.60.-i – General studies of phase transitions / 64.70.Ja – Liquid-liquid transitions / 68.05.-n – Liquid-liquid interfaces
© EDP Sciences, 2001
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