Effective temperature for sheared suspensions: A route towards closures for migration in bidisperse suspension

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Abstract

By extending the concept of an effective temperature, earlier introduced for sheared monodisperse suspensions, we propose a continuum theory for sheared bidisperse suspensions. We show the theory for sheared suspensions can be constructed from the theory for Brownian suspensions by replacing the temperature with the effective temperature. Furthermore, we explore the validity of closure relations based on mean field/free volume theory, by comparison with experimental data obtained for Brownian bidisperse suspensions. In a recent paper, we have shown that the new theory, combined with the discussed closure relations, is indeed a predictive theory.
Original languageEnglish
Pages (from-to)1-13
JournalAdvances in Colloid and Interface Science
Volume185-186
DOIs
Publication statusPublished - 2012

Keywords

  • pressure-driven flow
  • lattice-boltzmann simulations
  • induced particle migration
  • non-brownian suspensions
  • induced self-diffusion
  • concentrated suspensions
  • colloidal suspensions
  • kinetic-theory
  • polydisperse suspensions
  • deterministic ratchets

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