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One-group interfacial area transport in vertical bubbly flow

✍ Scribed by Q. Wu; S. Kim; M. Ishii; S.G. Beus

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
987 KB
Volume
41
Category
Article
ISSN
0017-9310

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✦ Synopsis

In

the two-fluid model, interfacial concentration is one of the important parameters. The objective oF this study is to develop an interfacial area equation with the source and sink terms being properly mf>deled. For bubble coalescence, the random collisions between bubbles due to turbulence, and the wake entrainment process due to the relative motions of the bubbles, were included. For bubble breakup, the impact of turbulent eddies is considered. Compared with measured axial distributions of the interfacial area concentration under various flow conditions, the adjustable parameters in the source/sink terms were obtained for the simplified one-dimensional transport equation.

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✍ Takashi Hibiki; Ye Mi; Rong Situ; Mamoru Ishii πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 English βš– 499 KB

In relation to the development of the interfacial area transport equation in a subcooled boiling flow, the onedimensional interfacial area transport equation was evaluated by the data taken in the hydrodynamic separate effect tests without phase change, or an adiabatic air-water bubbly flow in a ver