Interfacial area transport of vertical upward air-water two-phase flow in an annulus channel
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Other documents of the author: Jeong, J.J.; Ozar, Basar; Dixit, A.; Juliá Bolívar, José Enrique; Hibiki, Takashi; Ishii, M.
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
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http://dx.doi.org/10.1016/j.ijheatfluidflow.2007.07.007 |
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Title
Interfacial area transport of vertical upward air-water two-phase flow in an annulus channelAuthor (s)
Date
2008Publisher
ElsevierISSN
0142727XBibliographic citation
International Journal of Heat and Fluid Flow, 29, 1, p. 178-193Type
info:eu-repo/semantics/articleSubject
Abstract
An experimental study on the interfacial area transport (IAT) of vertical, upward, air-water two-phase flows in an annulus channel has been conducted. The inner and outer diameters of the annular channel were 19.1 mm ... [+]
An experimental study on the interfacial area transport (IAT) of vertical, upward, air-water two-phase flows in an annulus channel has been conducted. The inner and outer diameters of the annular channel were 19.1 mm and 38.1 mm, respectively. Nineteen inlet flow conditions were selected, which cover bubbly, cap-slug, and churn-turbulent flows. The local flow parameters, such as void fraction, interfacial area concentration (IAC), and bubble interface velocity, were measured at nine radial positions for the three axial locations (z/D<sub>H</sub> = 52, 149 and 230). The radial and axial evolutions of local flow structure were interpreted in terms of bubble coalescence and breakup. The measured data can be used for the development of the bubble coalescence/breakup models for the IAT model and some closure models for computational fluid dynamics. © 2007 Elsevier Inc. All rights reserved. [-]
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info:eu-repo/semantics/restrictedAccess
info:eu-repo/semantics/restrictedAccess
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