A Molecular Dynamics Approach for Nucleation-Growth of Cryogenic Cavitation

Shin-ichi Tsuda; Taiga Komatsu; Shu Takagi; Yoichiro Matsumoto

doi:10.1115/ajk2011-33016

A Molecular Dynamics Approach for Nucleation-Growth of Cryogenic Cavitation

Shin-ichi Tsuda, Taiga Komatsu, Shu Takagi, Yoichiro Matsumoto

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English (US)
Title of host publication	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 2, Fora
Publisher	ASME International
Pages	231-236
Number of pages	6
ISBN (Print)	9780791844410
DOIs	https://doi.org/10.1115/ajk2011-33016
State	Published - May 25 2012
Externally published	Yes

Bibliographical note

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.

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10.1115/ajk2011-33016

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title = "A Molecular Dynamics Approach for Nucleation-Growth of Cryogenic Cavitation",

abstract = "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 Nos{\'e}-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 {\textcopyright} 2011 by ASME.",

author = "Shin-ichi Tsuda and Taiga Komatsu and Shu Takagi and Yoichiro Matsumoto",

note = "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.",

year = "2012",

month = may,

day = "25",

doi = "10.1115/ajk2011-33016",

language = "English (US)",

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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 -

A Molecular Dynamics Approach for Nucleation-Growth of Cryogenic Cavitation

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