One-dimensional drift-flux model and constitutive equations for relative motion between phases in various two-phase flow regimes

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

200 Scopus Citations
View graph of relations



Original languageEnglish
Pages (from-to)4935-4948
Journal / PublicationInternational Journal of Heat and Mass Transfer
Issue number25
Publication statusPublished - Dec 2003
Externally publishedYes


In view of the practical importance of the drift-flux model for two-phase flow analysis in general and in the analysis of nuclear-reactor transients and accidents in particular, the kinematic constitutive equation for the drift velocity has been studied for various two-phase flow regimes. The constitutive equations that specify the relative motion between phases in the drift-flux model has been derived by taking into account the interfacial geometry, the body-force field, the shear stresses, the interfacial momentum transfer and the wall friction, since these macroscopic effects govern the relative velocity between phases. A comparison of the models with existing experimental data shows a satisfactory agreement. © 2003 Elsevier Ltd. All rights reserved.

Research Area(s)

  • Distribution parameter, Drift flux model, Drift velocity, Gas-liquid flow, Multiphase flow, Void fraction

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to

Citation Format(s)