Author(s):
1. Indir Mujanić, Energy Club, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. Danijela Kardaš, Faculty of Mechanical Engineering, Republic of Srpska, Bosnia and Herzegovina
3. Milan Lečić, Univeristy of Belgrade, Faculty of Mechanical Engineering, Serbia

Abstract:
The drift-flux model is essentially a separated-flow model in which attention is focused on the relative motion rather than on the motion of the individual phases. It is a type of separated flow model which looks particularly at the relative motion of the phases. It is most applicable to flows where there is a well-defined velocity in the gas phase, for example in bubbly flow and plug flow. Drift-flux theory has widespread application to the bubbly, slug, and drop regimes of gas-liquid flow as well as to fluid-particle systems such as fluidized beds. This paper presents an overview of the one-dimensional drift-flux method and comparison with other methods (homogeneous model and separated flow model) for calculation of void fraction and two-phase frictional pressure drop in a case of one-dimensional isothermal two-phase flow in a straight pipeline and dispersed bubble flow regime.

Key words:
drift-flux model, two-phase flow, pressure drop, void fraction

Thematic field:
Termotehnika i energetika

Date of abstract submission:
01.03.2013.

Number of visits:
325

Conference:
DEMI 2013