HYDRODYNAMICS OF TRICKLING FLOW IN PACKED BEDS. PART 1: CONDUIT MODELS.

Avelino E Saez, R. G. Carbonell, J. Levec

Research output: Contribution to journalArticle

45 Scopus citations

Abstract

The hydrodynamics of trickling flow in packed beds is modeled by representing the porous medium as an array of parallel conduits of circular cross section. First, a straight tube model is developed and analytical solutions are obtained for the relative permeabilities of the gas and liquid phases. Then a periodically constricted tube model is proposed and the equations of motion are solved numerically to determine the effect that surface tension forces have on the relative permeabilities. The constricted tube model predicts that the relative permeabilities of the phases are appreciably sensitive to surface tension forces, a prediction that seems at odds with experimental observations.

Original languageEnglish (US)
Pages (from-to)353-368
Number of pages16
JournalAICHE Journal
Volume32
Issue number3
Publication statusPublished - Mar 1986
Externally publishedYes

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ASJC Scopus subject areas

  • Biotechnology
  • Chemical Engineering(all)
  • Mechanical Engineering
  • Environmental Engineering
  • Polymers and Plastics

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