Computer-Simulation Dynamics of an Unstable Two-Dimensional Fluid: Time-Dependent Morphology and Scaling

Farid F. Abraham, S. W. Koch, Rashmi C. Desai

Research output: Contribution to journalArticle

57 Scopus citations

Abstract

From an isothermal molecular-dynamics experiment of an unstable two-dimensional fluid undergoing phase separation, two principal growth regimes are observed: (1) spinodal decomposition with a wavelike morphology followed by (2) a transition to cluster formation and growth due to atomic condensation and cluster coagulation. The time-dependent power-law behavior for the second growth regime is 0.5, in contrast to a constant-energy simulation which yields a power-law behavior of 0.33. Details of the phase-separation dynamics are discussed and compared with theory.

Original languageEnglish (US)
Pages (from-to)923-926
Number of pages4
JournalPhysical review letters
Volume49
Issue number13
DOIs
StatePublished - Jan 1 1982

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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