Numerical study of phase-separation behavior under temperature gradient

Details Numerical study of phase-separation behavior under temperature gradient Numerical study of phase-separation behavior under temperature gradient

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..519..259a&link_type=abstract

STATISTICAL PHYSICS: Third Tohwa University International Conference. AIP Conference Proceedings, Volume 519, pp. 259-261 (2000

Physics

Condensed Matter

Statistical Mechanics

Solubility, Segregation, And Mixing, Phase Separation, Spontaneous And Radiative Symmetry Breaking, Order-Disorder Transformations, Statistical Mechanics Of Model Systems

Scientific paper

We simulate the phase-separation dynamics under a temperature gradient by solving numerically the coupled Langevin equations of a ``fluid model'' (model H) and a Fourier's equation. It is found that the macroscopically phase-separated structure is formed in the case that the one side of the system is hotter than phase separation temperature Tc and the another side is cooler than Tc. In the simulation without velocity field, on the other hand, the coexistence of the mixing and demixing states is observed, reflecting the local temperature. This clearly indicates that the velocity fields play a crucial role in the phase-separation behavior in such a non-equilibrium condition. .

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