Molecular dynamics study of heterogeneous bubble nucleation in liquid oxygen including helium, nitrogen, or argon

Shinichi Tsuda, Takashi Tokumasu, Kenjiro Kamijo, Yoichiro Matsumoto

研究成果: Contribution to conferencePaper査読

1 被引用数 (Scopus)

抄録

Heterogeneous bubble nucleation in liquid oxygen including helium, nitrogen, or argon is simulated by using the molecular dynamics method. Molecular interaction is given as Lennard-Jones potential, and, basically, each potential parameter is determined so that a saturation curve obtained by MD data is consistent with an experimental value. In the case that helium is the impurity, a bubble is caused by density fluctuation at a lower concentration, while clusters of helium molecules become bubble nuclei at a higher concentration, and the point of bubble formation moves closer to the saturation point of pure oxygen when they form clusters. In the case that nitrogen or argon is the impurity, the above-mentioned clustering is not observed at a concentration where helium makes clusters, and these impurities have weaker action to make clusters compared with helium.

本文言語英語
ページ455-460
ページ数6
DOI
出版ステータス出版済み - 12 11 2002
外部発表はい
イベントProceedings of the 2002 ASME Joint U.S.-European Fluids Engineering Conference - Montreal, Que., 米国
継続期間: 7 14 20027 18 2002

その他

その他Proceedings of the 2002 ASME Joint U.S.-European Fluids Engineering Conference
国/地域米国
CityMontreal, Que.
Period7/14/027/18/02

All Science Journal Classification (ASJC) codes

  • 工学(全般)

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