Self-similarity and coarsening rate of a convecting bicontinuous phase separating mixture: Effect of the viscosity contrast

Hervé Henry, G. Tegze

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We present a computational study of the hydrodynamic coarsening in three dimensions of a critical mixture using the Cahn-Hilliard/Navier-Stokes model. The topology of the resulting intricate bicontinuous microstructure is analyzed through the principal curvatures to prove self-similar morphological evolution. We find that the self-similarity exists for both systems: isoviscous and with variable viscosity. However, the two systems have a distinct topological character. Moreover, an effective viscosity that accurately predicts the coarsening rate is proposed.

Original languageEnglish
Article number074306
JournalPhysical Review Fluids
Volume7
Issue number3
DOIs
Publication statusPublished - Jul 1 2018

Fingerprint

Coarsening
Self-similarity
Viscosity
Variable Viscosity
Cahn-Hilliard
Principal curvature
Navier-Stokes
Three-dimension
Microstructure
Hydrodynamics
Topology
Distinct
Predict
Model
Character

ASJC Scopus subject areas

  • Computational Mechanics
  • Modelling and Simulation
  • Fluid Flow and Transfer Processes

Cite this

Self-similarity and coarsening rate of a convecting bicontinuous phase separating mixture : Effect of the viscosity contrast. / Henry, Hervé; Tegze, G.

In: Physical Review Fluids, Vol. 7, No. 3, 074306, 01.07.2018.

Research output: Contribution to journalArticle

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