Wall effects for the pressure drop in fixed beds

R. Di Felice, L. G. Gibilaro

Research output: Contribution to journalArticlepeer-review

71 Citations (Scopus)


A very simple model is presented for the effect of the container wall on the pressure drop in a fluid flowing through a bed of spheres. It is based on the application of the Ergun equation to the bulk region of the bed, unaffected by the wall. Pressure loss predictions are found to correspond well to the opposing trends reported in the literature for the viscous- and inertial-flow regimes.

Original languageEnglish
Pages (from-to)3037-3040
Number of pages4
JournalChemical Engineering Science
Issue number14
Publication statusPublished - Jul 2004


  • Hydrodynamics
  • Packed bed
  • Reaction engineering
  • Viscous and inertial flow
  • Void-fraction
  • Wall effects

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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