Experimental study on interfacial area transport in vertical upward bubbly two-phase flow in an annulus

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Original languageEnglish
Pages (from-to)427-441
Journal / PublicationInternational Journal of Heat and Mass Transfer
Issue number3
Publication statusPublished - Jan 2003
Externally publishedYes


In relation to the development of the interfacial area transport equation, axial developments of local void fraction, interfacial area concentration, and interfacial velocity of vertical upward bubbly flows in an annulus with the hydraulic equivalent diameter of 19.1 mm were measured by the double-sensor conductivity probe. A total of 20 data were acquired consisting of five void fractions, about 0.050, 0.10, 0.15, 0.20, and 0.25, and four superficial liquid velocities, 0.272, 0.516, 1.03, and 2.08 m/s. The obtained data will be used for the development of reliable constitutive relations, which reflect the true transfer mechanisms in subcooled boiling flow systems. © 2002 Elsevier Science Ltd. All rights reserved.

Research Area(s)

  • Double-sensor conductivity probe, Gas-liquid bubbly flow, Interfacial area concentration, Interfacial area transport, Multiphase flow, Two-fluid model, Void fraction

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