Phys. Rev. Lett. 101, 234301 (2008) [4 pages]Molecular Dynamics of Extreme Mass Segregation in a Rapidly Collapsing BubbleReceived 16 July 2008; published 5 December 2008 A molecular dynamic simulation of a mixture of light and heavy gases in a rapidly imploding sphere exhibits virtually complete segregation. The lighter gas collects at the focus of the sphere and reaches a temperature that is several orders of magnitude higher than when its concentration is 100%. Implosion parameters are chosen via a theoretical fit to an observed sonoluminescing bubble with an extreme expansion ratio (25∶1) of maximum to ambient radii. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.234301
DOI:
10.1103/PhysRevLett.101.234301
PACS:
78.60.Mq, 02.70.Ns
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