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eKonferencije.com: TWO-PHASE FLOW PRESSURE DROP AND VOID FRACTION CALCULATION USING A METHOD BASED ON THE ONE-DIMENSIONAL DRIFT-FLUX MODEL

TWO-PHASE FLOW PRESSURE DROP AND VOID FRACTION CALCULATION USING A METHOD BASED ON THE ONE-DIMENSIONAL DRIFT-FLUX MODEL

1. Indir Mujanić, Energy Club, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. Danijela Kardaš, Машински факултет Универзитета у Бањој Луци, Republic of Srpska, Bosnia and Herzegovina
3. Milan Lečić, Univeristy of Belgrade, Faculty of Mechanical Engineering, Serbia

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.

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Тематска област: Термотехника и енергетика

Датум: 01.03.2013.

Бр. отварања: 325

DEMI 2013


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