Numerical simulation of particulate cake formation in cross-flow microfiltration: Effects of attractive forces

Junta Nishitani, Yasushi Mino, Hideto Matsuyama

Research output: Contribution to journalArticle

Abstract

We present a two-dimensional simulation model to explore cake formation in cross-flow filtration. The model uses the lattice Boltzmann method (LBM) for fluid computation and the discrete element method (DEM) for particle computation; they were fully coupled with the smoothed profile method. We verified our model by simulating filtration under different transmembrane pressures. We then investigated the effects of attractive forces and particle concentration on the cake formation mechanism. Generally, as the attractive interaction and particle concentration increased, the particles formed a cake layer with a looser body and rough surface, due to the decrease in the mobility of the particles in contact with the cake surface. It is concluded that the effects of particle concentration are affected by the different conditions of attractive interactions between the particles.

Original languageEnglish
JournalAdvanced Powder Technology
DOIs
Publication statusPublished - Jan 1 2019

Keywords

  • Cake formation
  • Cross-flow filtration
  • Discrete element method (DEM)
  • Lattice Boltzmann method (LBM)
  • van der Waals force

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanics of Materials

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