Drift-flux model in a sub-channel of rod bundle geometry
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Otros documentos de la autoría: Juliá Bolívar, José Enrique; Hibiki, Takashi; Ishii, M.; Yun, Byong-Jo; Park, Goon-Cherl
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Mostrar el registro completo del ítemcomunitat-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.ijheatmasstransfer.2009.02.012 |
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Título
Drift-flux model in a sub-channel of rod bundle geometryFecha de publicación
2009Editor
ElsevierISSN
179310Cita bibliográfica
International Journal of Heat and Mass Transfer, 52, 13-14, p. 3032-3041Tipo de documento
info:eu-repo/semantics/articlePalabras clave / Materias
Resumen
In view of the practical interest of the drift-flux model for two-phase flow analysis, the distribution parameter and drift velocity constitutive equations have been obtained for subcooled boiling flow in a sub-channel ... [+]
In view of the practical interest of the drift-flux model for two-phase flow analysis, the distribution parameter and drift velocity constitutive equations have been obtained for subcooled boiling flow in a sub-channel of rod bundle geometry. The constitutive equation of the distribution parameter for subcooled boiling flow in a sub-channel is obtained from the bubble-layer thickness model. In this derivation an existing constitutive equation for subcooled boiling flow in a round pipe is modified by taking account of the difference in the flow channel geometry between the sub-channel and round pipe. The constitutive equation of the drift velocity is proposed based on an existing correlation and considering the rod wall and sub-channel geometry effects. The prediction accuracy of the newly developed correlations has been checked against experimental data in a 3 × 3 rod bundle sub-channel, obtaining better predicting errors than the existing correlations most used in literature. © 2009 Elsevier Ltd. All rights reserved. [-]
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