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.
Keywords
Spinodal decompositionScalingMolecular dynamicsCluster (spacecraft)CondensationPower lawIsothermal processStatistical physicsConstant (computer programming)Dynamics (music)Materials sciencePhase (matter)PhysicsThermodynamics
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Publication Info
- Year
- 1982
- Type
- article
- Volume
- 49
- Issue
- 13
- Pages
- 923-926
- Citations
- 68
- Access
- Closed
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Cite This
Farid F. Abraham,
S. W. Koch,
Rashmi C. Desai
(1982).
Computer-Simulation Dynamics of an Unstable Two-Dimensional Fluid: Time-Dependent Morphology and Scaling.
Physical Review Letters
, 49
(13)
, 923-926.
https://doi.org/10.1103/physrevlett.49.923
Identifiers
- DOI
- 10.1103/physrevlett.49.923