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 | |
Autori: | ||
Data di pubblicazione: | 2012 | |
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Handle: | http://hdl.handle.net/11386/3985853 | |
Appare nelle tipologie: | 1.1.1 Articolo su rivista con DOI |
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