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Void fraction in vertical gas-liquid slug flow: Influence of liquid slug content

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Academic year: 2021

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Fig. 1. Schematic principle of the model (Brauner and Ullmann, 2004). Three flow regions are considered: the Taylor bubble gas pocket (P ), the near wake zone in the liquid slug (W ) and the developed liquid slug region (B ∞ ).
Fig. 3. Upper and lower limits for the gravitational pressure gradient by combining equation 3 with the upper and lower limit estimates for the void fraction
Fig. 5. Evaluated gas bubble mean velocity in the liquid slug, by using the experimental data of Koeck (1980) at U sl = 0.7m.s − 1
Fig. 7. Equivalent distribution parameter in the wake region, as a function of the mixture velocity
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