Ostwald Ripening in Multiple-Bubble Nuclei

Abstract

The ostwald ripening of bubbles is studied by molecular dynamics simulations involving up to 679 million Lennard-Jones particles. Many bubbles appear after depressurizing a system that is initially maintained in the pure-liquid phase, and the coarsening of bubbles follows. The self-similarity of the bubble-size distribution function predicted by Lifshitz-Slyozov-Wagner theory is directly confirmed. The total number of bubbles decreases asymptotically as $t^{-x}$ with scaling exponent $x$. As the initial temperature increases, the exponent changes from $x=3/2$ to $1$, which implies that the growth of bubbles changes from interface-limited (the $t^{1/2}$ law) to diffusion-limited (the $t^{1/3}$ law) growth.

7 pages, 6 figures

References in corpus (5)

• Phase diagram and universality of the Lennard-Jones gas-liquid system
• Homogeneous Bubble Nucleation driven by local hot spots: a Molecular Dynamics Study
• Huge-scale Molecular Dynamics Simulation of Multibubble Nuclei
• Efficient Implementations of Molecular Dynamics Simulations for Lennard-Jones Systems
• Dynamical Study of Polydisperse Hard-Sphere System

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• Heat-induced liquid hovering in liquid-gas coexistence under gravity
• Growth and shrinkage of tissue sheets on substrates: buds, buckles, and pores
• Light-Guided Surface Plasmonic Bubble Movement via Contact Line De-Pinning by In-Situ Deposited Plasmonic Nanoparticle Heating