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Interfacial Area Transport of Vertical Upward Bubbly Two-Phase Flow in an Annulus

Hibiki, Takashi , Mi, Ye, Situ, Rong, & Ishii, Mamoru (2003) Interfacial Area Transport of Vertical Upward Bubbly Two-Phase Flow in an Annulus. International Journal of Heat and Mass Transfer, 46(25), pp. 4949-4962.

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Abstract

In relation to the development of the interfacial area transport equation in a subcooled boiling flow, the one-dimensional interfacial area transport equation was evaluated by the data taken in the hydrodynamic separate effect tests without phase change for an adiabatic air-water bubbly flow in a vertical annulus. The annulus channel consisted of an inner rod with a diameter of 19.1 mm and an outer round tube with an inner diameter of 38.1 mm, and the hydraulic equivalent diameter was 19.1 mm. Twenty data sets 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 were used for the evaluation of the one-dimensional interfacial area transport equation. The one-dimensional interfacial area transport equation agreed with the data with an average relative deviation of ±8.96 %. Sensitivity analysis was also performed to investigate the effect of the initial bubble size on the interfacial area transport. It was shown that the dominant mechanism of the interfacial area transport was strongly dependent of the initial bubble size.

Impact and interest:

15 citations in Scopus
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12 citations in Web of Science®

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123 since deposited on 25 Oct 2007
12 in the past twelve months

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ID Code: 10422
Item Type: Journal Article
Keywords: Interfacial area transport, Two, fluid model, Interfacial area concentration, Double, sensor conductivity probe, Gas, liquid bubbly flow, Multiphase flow
DOI: 10.1016/S0017-9310(03)00318-1
ISSN: 0017-9310
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Mechanical Engineering not elsewhere classified (091399)
Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > CLASSICAL PHYSICS (020300) > Fluid Physics (020303)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500) > Heat and Mass Transfer Operations (091505)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2003 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher
Deposited On: 25 Oct 2007
Last Modified: 11 Aug 2011 00:52

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