Modelling of gas entrainment from Taylor bubbles. Part A: Slug flow

N. Brauner*, A. Ullmann

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A model that attributes the aeration of the liquid slug to a recurrent bubble entrainment from the Taylor bubble (TB) tail is introduced. The bubble fragmentation is related to the rate of turbulent kinetic energy produced in the wall jet and shear layer, which are formed in the TB wake as the liquid film plunges into the slug front. The bubble fragmentation model has been incorporated into a complete model, which suggests a unified method for the prediction of the slug void fraction and other slug characteristics in horizontal, inclined and vertical slug flow. The model has been tested against experimental data available from the literature and was found to predict the effects of liquid and gas flow rates and their physical properties, as well as tube diameter and inclination.

Original languageEnglish
Pages (from-to)239-272
Number of pages34
JournalInternational Journal of Multiphase Flow
Issue number3
StatePublished - Mar 2004


  • Aeration
  • Entrainment
  • Gas-liquid
  • Holdup
  • Slug flow
  • Taylor bubble


Dive into the research topics of 'Modelling of gas entrainment from Taylor bubbles. Part A: Slug flow'. Together they form a unique fingerprint.

Cite this