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

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Detail(s)

Original languageEnglish
Pages (from-to)4935-4948
Journal / PublicationInternational Journal of Heat and Mass Transfer
Volume46
Issue number25
Publication statusPublished - Dec 2003
Externally publishedYes

Abstract

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

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