Structure of air-water bubbly flow in a vertical annulus
Hibiki, Takashi , Situ, Rong, Mi, Ye, & Ishii, Mamoru (2002) Structure of air-water bubbly flow in a vertical annulus. In Rao, Atam (Ed.) International Congress on Advanced Nuclear Power Plants (ICAPP) Embedded Topical Meeting, 9-13 June 2002, Hollywood, Florida.
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Local measurements of flow parameters were performed for vertical upward bubbly flows in an 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. Double-sensor conductivity probe was used for measuring void fraction, interfacial area concentration, and interfacial velocity, and Laser Doppler anemometer was utilized for measuring liquid velocity and turbulence intensity. The mechanisms to form the radial profiles of local flow parameters were discussed in detail. The constitutive equations for distribution parameter and drift velocity in the drift-flux model, and the semi-theoretical correlation for Sauter mean diameter namely interfacial area concentration, which were proposed previously, were validated by local flow parameters obtained in the experiment using the annulus.
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|Item Type:||Conference Paper|
|Additional Information:||Access to the author-version is currently restricted pending permission from the publisher. For more information, please refer to the journal’s website (see hypertext link) or contact the author.|
|Subjects:||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 2002 American Nuclear Society|
|Deposited On:||23 Oct 2007|
|Last Modified:||11 Aug 2011 00:52|
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