Onset of pulsing in two‐phase cocurrent downflow through a packed bed

K. Grosser, R. G. Carbonell, Sankaran Sundaresan

Research output: Contribution to journalArticlepeer-review

161 Scopus citations


In cocurrent downflow of a gas and a liquid through a packed column, a transition from trickling flow to pulsing flow is observed as one increases the flow rates. A simple macroscopic model for the two‐phase flow is analyzed to examine whether this regime transition should be viewed as the loss of stability of a steady state or the loss of existence of any solution for the steady‐state equations of motion. The former appears to be a more reasonable interpretation and an explicit algebraic criterion for the onset of pulsing is presented.

Original languageEnglish (US)
Pages (from-to)1850-1860
Number of pages11
JournalAIChE Journal
Issue number11
StatePublished - Nov 1988

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Environmental Engineering
  • General Chemical Engineering


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