A molecular dynamics study on the growth of bubble nuclei with a noncondensable gas (1st report, a comparative analysis of the growth patterns)

Shinichi Tsuda, Shu Takagi, Yoichiro Matsumoto

Research output: Contribution to journalArticle

Abstract

The growth of bubble nuclei in a decompressed liquid has been investigated using molecular dynamics (MD) simulations. In the case of one-component liquid in which no impurities were dissolved, we observed rapid growth of bubble nuclei with weak inter-bubble interaction in the early stage while seeing a competing coarsening that looks like Ostwald ripening in the late stage. In the case of two-component liquid in which a noncondensable gas was dissolved, we observed frequent coalescence of bubble nuclei through all stages. We pointed out that the different growth patterns in the two cases originated from the time characteristic of the pressure propagation and that of the diffusion of the noncondensable gas.

Original languageEnglish
Pages (from-to)2145-2152
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume73
Issue number10
Publication statusPublished - Oct 2007
Externally publishedYes

Fingerprint

noncondensable gases
Molecular dynamics
bubbles
molecular dynamics
nuclei
Liquids
Gases
Ostwald ripening
liquids
Coarsening
Bubbles (in fluids)
Coalescence
Impurities
coalescing
Computer simulation
impurities
propagation
simulation
interactions

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

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