TY - GEN
T1 - A Molecular Dynamics Approach for Nucleation-Growth of Cryogenic Cavitation
AU - Tsuda, Shin-ichi
AU - Komatsu, Taiga
AU - Takagi, Shu
AU - Matsumoto, Yoichiro
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUK-I1-005-04
Acknowledgements: The present study has been supported by KAUST GRP (KUK-I1-005-04), which is granted to Prof. Nobuyasu Ito (The University of Tokyo).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
PY - 2012/5/25
Y1 - 2012/5/25
N2 - The 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.
AB - The 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.
UR - http://hdl.handle.net/10754/597313
UR - https://asmedigitalcollection.asme.org/FEDSM/proceedings/AJK2011/44410/231/361280
UR - http://www.scopus.com/inward/record.url?scp=84881397638&partnerID=8YFLogxK
U2 - 10.1115/ajk2011-33016
DO - 10.1115/ajk2011-33016
M3 - Conference contribution
SN - 9780791844410
SP - 231
EP - 236
BT - ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 2, Fora
PB - ASME International
ER -