Fluid-particle drag in inertial polydisperse gas-solid suspensions

William Holloway, Xiaolong Yin, Sankaran Sundaresan

Research output: Contribution to journalArticlepeer-review

75 Scopus citations


In this article, we extend the low Reynolds number fluid-particle drag relation proposed by Yin and Sundaresan for polydisperse systems to include the effect of moderate fluid inertia. The proposed model captures the fluid-particle drag results obtained from lattice-Boltzmann simulations of bidisperse and ternary suspensions at particle mixture Reynolds numbers ranging from 0 ≤ Remix ≤ 40, over a particle volume fraction range of 0.2 ≤ φ ≤ 0.4, volume fraction ratios of 1 ≤ φij ≤ 3, and particle diameter ratios of 1 ≤ di/dj ≤ 2.5.

Original languageEnglish (US)
Pages (from-to)1995-2004
Number of pages10
JournalAIChE Journal
Issue number8
StatePublished - Aug 2010

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Environmental Engineering
  • General Chemical Engineering


  • Fluid-particle drag force
  • Fluidized bed
  • Lattice-Boltzmann simulation
  • Moderate inertia
  • Multi-fluid model
  • Polydisperse mixtures


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