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Title: Phase separation of binary fluids with dynamic temperature
Authors: Gonnella, Giuseppe
Lamura, Antonio
Piscitelli, Antonio
Tiribocchi, Adriano
Keywords: DRNTU::Science::Physics::Heat and thermodynamics
Issue Date: 2010
Source: Gonnella, G., Lamura, A., Piscitelli, A., & Tiribocchi, A. (2010). Phase separation of binary fluids with dynamic temperature. Physical review E, 82, 046302-.
Series/Report no.: Physical review E
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 towards the inner of the system with power-law behavior. At low viscosity hydrodynamics favors rounded shapes, and complex patterns with different lengthscales appear. Off-symmetrical systems behave similarly but with more ordered configurations.
Rights: © 2010 The American Physical Society. This paper was published in Physical Review E and is made available as an electronic reprint (preprint) with permission of The American Physical Society. The paper can be found at the following official DOI: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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