Phase separation in a chaotic flow
arXiv:cond-mat/0010236 · doi:10.1103/PhysRevLett.86.2014
Abstract
The phase separation between two immiscible liquids advected by a bidimensional velocity field is investigated numerically by solving the corresponding Cahn-Hilliard equation. We study how the spinodal decomposition process depends on the presence -or absence- of Lagrangian chaos. A fully chaotic flow, in particular, limits the growth of domains and for unequal volume fractions of the liquids, a characteristic exponential distribution of droplet sizes is obtained. The limiting domain size results from a balance between chaotic mixing and spinodal decomposition, measured in terms of Lyapunov exponent and diffusivity constant, respectively.
Minor changes - Version accepted for publication - Physical Review Letters
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Cited by in corpus (19)
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