Thermodynamic coarsening arrested by viscous fingering in partially miscible binary mixtures

Cueto-Felgueroso Landeira, Luis and Fu, Xiaojing and Juanes, Rubén (2016). Thermodynamic coarsening arrested by viscous fingering in partially miscible binary mixtures. "Physical Review E: covering statistical, nonlinear, biological and soft matter physics", v. 94 (n. 3); pp. 1-5. ISSN 2470-0045. https://doi.org/10.1103/PhysRevE.94.033111.

Description

Title: Thermodynamic coarsening arrested by viscous fingering in partially miscible binary mixtures
Author/s:
  • Cueto-Felgueroso Landeira, Luis
  • Fu, Xiaojing
  • Juanes, Rubén
Item Type: Article
Título de Revista/Publicación: Physical Review E: covering statistical, nonlinear, biological and soft matter physics
Date: September 2016
Volume: 94
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ingeniería Civil: Hidráulica, Energía y Medio Ambiente
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

We study the evolution of binary mixtures far from equilibrium, and show that the interplay between phase separation and hydrodynamic instability can arrest the Ostwald ripening process characteristic of nonflowing mixtures. We describe a model binary system in a Hele-Shaw cell using a phase-field approach with explicit dependence of both phase fraction and mass concentration. When the viscosity contrast between phases is large (as is the case for gas and liquid phases), an imposed background flow leads to viscous fingering, phase branching, and pinch off. This dynamic flow disorder limits phase growth and arrests thermodynamic coarsening. As a result, the system reaches a regime of statistical steady state in which the binary mixture is permanently driven away from equilibrium.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainRYC-2012-11704UnspecifiedUnspecifiedSubprograma Ramón y Cajal

More information

Item ID: 45932
DC Identifier: http://oa.upm.es/45932/
OAI Identifier: oai:oa.upm.es:45932
DOI: 10.1103/PhysRevE.94.033111
Official URL: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.94.033111
Deposited by: Memoria Investigacion
Deposited on: 30 May 2017 14:51
Last Modified: 30 May 2017 14:52
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