On the use of the stratified momentum balance for the deduction of shear stress in horizontal gas-liquid pipe flow

C. H. Newton*, M. Behnia

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The use of the stratified flow momentum balance for the deduction of interfacial and liquid wall shear stresses from experimental measurements is examined. A systematic error analysis is applied to the governing equations using the principle of maximum uncertainty. A series of air-water experiments were conducted in 50 and 80 mm diameter pipes, in which gas pressure drop, liquid height and gas wall shear stress were measured. A framework for the correlation of the deduced shear stresses is proposed from the experimental measurements. The uncertainty analysis is used to show that the definition of mean liquid height does not significantly influence the overall results. The development of empirical equations based on such methods may lead to total uncertainties of up to 40%, irrespective of accuracy of the experimental data or the appropriateness of the correlating technique. Comparisons with state-of-the-art correlations for the liquid wall and interfacial friction factor data showed even larger discrepancies between measurement and prediction.

Original languageEnglish
Pages (from-to)1407-1423
Number of pages17
JournalInternational Journal of Multiphase Flow
Volume24
Issue number8
DOIs
Publication statusPublished - Dec 1998
Externally publishedYes

Keywords

  • Friction factor
  • Horizontal
  • Momentum balance
  • Stratified
  • Two-phase
  • Uncertainty analysis

Fingerprint

Dive into the research topics of 'On the use of the stratified momentum balance for the deduction of shear stress in horizontal gas-liquid pipe flow'. Together they form a unique fingerprint.

Cite this