Characteristics of air-water two-phase in a 3-mm smooth tube

Chi-Chuan Wang*, K. S. Yang, Y. J. Chang, D. C. Lu

*Corresponding author for this work

Research output: Contribution to journalArticle

9 Scopus citations


Two-phase flow pattern and friction characteristics for an air-water system in a 3.17 mm smooth tube are reported in this study. The range of mass flux is between 50 and 700 kg/m2·s. The experimental data show that the two-phase friction multipliers are strongly related to the flow pattern. For a stratified-wavy flow pattern, a mass-flux dependence of the two-phase multipliers is seen. For a non-stratified flow pattern, the two-phase frictional multipliers are comparatively independent of mass flux. Correlations of the frictional multipliers are developed for stratified and non-stratified flow. To use the appropriate correlation in different regime, a simple criterion is proposed.

Original languageEnglish
Pages (from-to)1011-1016
Number of pages6
JournalCanadian Journal of Chemical Engineering
Issue number5
StatePublished - 1 Jan 2000


  • Air-water
  • Flow pattern
  • Pressure drop
  • Two-phase flow

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