Molecular dynamics of extreme mass segregation in a rapidly collapsing bubble.
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.
Bass
Alexander
A
Department of Physics and Astronomy, University of California at Los Angeles, Los Angeles, California 90095, USA.
Ruuth
Steven J
SJ
Camara
Carlos
C
Merriman
Barry
B
Putterman
Seth
S