Roll wave celerity and average film thickness in turbulent wavy film flow

Neima Brauner*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The two basic characteristics of wavy flow, the rolling wave celerity and average wavy film thickness in laminar and turbulent wavy film are predicted by simple analytical expressions. In the laminar region the dimensionless wave celerity is predicted to be constant, 3.78, or mildly dependent on the film Reynolds number, proportional to Re- 1 15. In the turbulent region the wave celerity decreases as Re- 1 4. These results compare reasonably well with experimental data corresponding to rolling waves in a fully developed wavy flow region.

Original languageEnglish
Pages (from-to)265-273
Number of pages9
JournalChemical Engineering Science
Volume42
Issue number2
DOIs
StatePublished - 1987

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