We use state-of-the-art molecular dynamics simulations to study hydrodynamic effects on aging during kinetics of phase separation in a fluid mixture. The domain growth law shows a crossover from a diffusive regime to a viscous hydrodynamic regime. There is a corresponding crossover in the autocorrelation function from a power-law behavior to an exponential decay. While the former is consistent with theories for diffusive domain growth, the latter results as a consequence of faster advective transport in fluids for which an analytical justification has been provided.
|Titolo:||Aging and crossovers in phase-separating fluid mixtures|
|Data di pubblicazione:||2012|
|Appare nelle tipologie:||1.1.1 Articolo su rivista con DOI|