Phase separation of binary fluids with dynamic temperature

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Abstract

Phase separation of binary fluids quenched by contact with cold external walls is considered. Navier-Stokes, convection-diffusion, and energy equations are solved by lattice Boltzmann method coupled with finite-difference schemes. At high viscosity, different morphologies are observed by varying the thermal diffusivity. In the range of thermal diffusivities with domains growing parallel to the walls, temperature and phase separation fronts propagate toward the inner of the system with power-law behavior. At low viscosity hydrodynamics favors rounded shapes, and complex patterns with different length scales appear. Off-symmetrical systems behave similarly but with more ordered configurations.

Autore Pugliese

Tutti gli autori

  • G. Gonnella; A. Lamura; A. Piscitelli; A. Tiribocchi

Titolo volume/Rivista

Physical review. E, Statistical, nonlinear, and soft matter physics

Anno di pubblicazione

2010

ISSN

1539-3755

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

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Numero di citazioni Scopus

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Settori ERC

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Codici ASJC

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