Stability analysis of stratfied liquid-liquid flow

N. Brauner*, D. Moalem Maron

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Linear stability analysis is being widely used in exploring gas-liquid stratified/non-stratified transitions. As the present study relates to liquid-liquid two-phase systems, the stability characteristics of stratified layers are considered. In parallel, the conditions necessary for real characteristics are also explored. The relations between stability conditions and those for well-posedness are discussed in view of the implications for flow pattern transitions. The convergence of the stability conditions to various extremes is discussed. The integrated considerations of stability and well-posedness shed light on the physical sequences in flow pattern transitions, which so far have been studied by stability analysis alone. As liquid-liquid systems are involved, wide ranges of density and viscosity ratios are studied for various operational conditions.

Original languageEnglish
Pages (from-to)103-121
Number of pages19
JournalInternational Journal of Multiphase Flow
Issue number1
StatePublished - Jan 1992


  • flow pattern transitions
  • liquid-liquid
  • stability
  • stratified two-phase flow
  • well-posedness


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