Formulation of one-dimensional interfacial area transport equation in subcooled boiling flow
Hibiki, Takashi, Situ, Rong, Mi, Ye, & Ishii, Mamoru (2003) Formulation of one-dimensional interfacial area transport equation in subcooled boiling flow. In Chang, Soon Heung, Baek, Won-Pil, & Rempe, Joy (Eds.) 10th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-10), 5-9 October, 2003, Seoul, Korea.
In relation to the formulation of one-dimensional interfacial area transport equation in a subcooled boiling flow, the bubble-layer thickness model was introduced to avoid many covariances in crosssectional averaged interfacial area transport equation in the subcooled boiling flow. The one dimensional interfacial area transport equation in the subcooled boiling flow was formulated by partitioning a flow region into two regions; boiling two-phase (bubble-layer) region and liquid singlephase region. The bubble-layer thickness model assuming the square void peak in the bubble-layer region was developed to predict the bubble-layer thickness of the subcooled boiling flow. The obtained model was evaluated by void fraction profile measured in an internally heated annulus. It was shown that the bubble-layer thickness model could be applied to predict the bubble-layer thickness as well as the void fraction profile. In addition, the constitutive equation for the distribution parameter of the boiling flow in the internally heated annulus, which was used for formulating the bubble-layer thickness model, was developed based on the measured data. The model developed in this study will eventually be used for the development of reliable constitutive relations, which reflect the true transfer mechanisms in subcooled boiling flows.
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|Item Type:||Conference Paper|
|Keywords:||Interfacial area transport, Subcooled boiling flow, Bubble layer thickness|
|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 2003 (please consult author)|
|Deposited On:||10 Sep 2008|
|Last Modified:||10 Aug 2011 14:52|
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