Ostwald Ripening in Multiple-Bubble Nuclei

Hiroshi Watanabe; Masaru Suzuki; Hajime Inaoka; Nobuyasu Ito

doi:10.1063/1.4903811

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arXiv · 1407.0102

Ostwald Ripening in Multiple-Bubble Nuclei

Hiroshi Watanabe·Masaru Suzuki·Hajime Inaoka·Nobuyasu Ito

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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.

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BibTeX RIS

Hiroshi Watanabe, Masaru Suzuki, Hajime Inaoka, Nobuyasu Ito. 2014-10-24. Ostwald Ripening in Multiple-Bubble Nuclei. https://doi.org/10.1063/1.4903811

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