A Molecular Dynamics Approach for Nucleation-Growth of Cryogenic Cavitation
KAUST Grant NumberKUK-I1-005-04
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AbstractThe growth of cavitation bubble nuclei in a metastable state in liquid argon, as one of cryogenic fluids, was investigated using a Molecular Dynamics (MD) simulation with a Nosé-Hoover chain thermostat. We observed rapid growth of bubble nuclei with weak inter-bubble interaction in the early stage, while observed a competing coarsening that looks like Ostwald ripening in the late stage and its growth exponent n became 0.51. We compared the present MD result with that in an adiabatic simulation (Energy-constant MD without any thermostats), and the influence of the field temperature was discussed. Also, we compared the present MD results with a coarsening theory for droplets, and discussed the characteristics of the coarsening mechanism of bubble nuclei. Copyright © 2011 by ASME.
CitationTsuda S, Komatsu T, Takagi S, Matsumoto Y (2011) A Molecular Dynamics Approach for Nucleation-Growth of Cryogenic Cavitation. ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 2, Fora. Available: http://dx.doi.org/10.1115/ajk2011-33016.
SponsorsThe present study has been supported by KAUST GRP (KUK-I1-005-04), which is granted to Prof. Nobuyasu Ito (The University of Tokyo).