Simulations of liquid-to-solid mass transfer in a fluidized microchannel

J. J. Derksen*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Liquid-to-solid mass transfer in a microfluidized bed consisting of monosized, spherical particles in a Newtonian liquid has been studied numerically. The simulations fully resolve the laminar, near-creeping flow of the solid-liquid suspension. In addition, passive scalar concentrations in the liquid at high Schmidt number (Sc up to 10(4)) have been determined. Solids volume fractions are in the range 0.18-0.27. The concentration boundary conditions are such that the scalar can be thought of as being adsorbed on the solid particle surfaces. The simulations quantify the overall adsorption performance of the fluidized bed, and they provide insights in local variations (per particle and over individual particle surfaces) of mass transfer rates.

Original languageEnglish
Pages (from-to)829-839
Number of pages11
JournalMicrofluidics and nanofluidics
Volume18
Issue number5-6
Early online date5 Sep 2014
DOIs
Publication statusPublished - May 2015

Keywords

  • Solid-liquid mass transfer
  • Microfluidization
  • Lattice Boltzmann method
  • Coupled overlapping domains
  • Particle-resolved simulations
  • Lattice-Boltzmann simulations
  • Hyperbolic Conservation-Laws
  • High-Resolution Schemes
  • Single Sphere
  • Particle
  • Flow
  • Channel
  • Array
  • Beds
  • Suspensions

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