A bubble mechanistic model for subcooled boiling flow predictions

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dc.contributor.authorYeoh, GHen_AU
dc.contributor.authorTu, JYen_AU
dc.date.accessioned2022-09-19T02:29:44Zen_AU
dc.date.available2022-09-19T02:29:44Zen_AU
dc.date.issued2010-08-17en_AU
dc.date.statistics2022-07-21en_AU
dc.description.abstractPopulation balance equations combined with a three-dimensional two-fluid model are employed to predict subcooled boiling flow at low pressure in a vertical annular channel. The MUSIG (Multiple-Size-Group) model implemented in CFX4.4 is extended to account for the wall nucleation and condensation in the subcooled boiling regime. Comparison of model predictions against local measurements is made for the void fraction, bubble Sauter diameter, interfacial area concentration, bubble population density, and gas and liquid velocities covering a range of different mass and heat fluxes and inlet subcooling temperatures. Good agreement is achieved with the local radial void fraction, bubble Sauter diameter, interfacial area concentration, bubble population density, and liquid velocity profiles against measurements. However, further improvement is needed for the accurate prediction of the vapor velocity using the present bubble mechanistic model. A proposal to include an algebraic slip model to account for bubble separation in the MUSIG boiling model is presented. © 2022 Informa UK Limiteden_AU
dc.identifier.citationYeoh, G. H., & Tu, J. Y. (2004). A bubble mechanistic model for subcooled boiling flow predictions. Numerical Heat Transfer, Part B: Fundamentals, 45(5), 475-493. doi:10.1080/10407790490268959en_AU
dc.identifier.issn1040-7790en_AU
dc.identifier.issue5en_AU
dc.identifier.journaltitleNumerical Heat Transferen_AU
dc.identifier.pagination475-493en_AU
dc.identifier.urihttps://doi.org/10.1080/10407790490268959en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13816en_AU
dc.identifier.volume45en_AU
dc.language.isoenen_AU
dc.publisherTaylor & Francisen_AU
dc.subjectEquationsen_AU
dc.subjectNucleationen_AU
dc.subjectAnnular spaceen_AU
dc.subjectVapor condensationen_AU
dc.subjectBubblesen_AU
dc.subjectBoiling detectionen_AU
dc.subjectSubcooled boilingen_AU
dc.subjectVoid fractionen_AU
dc.titleA bubble mechanistic model for subcooled boiling flow predictionsen_AU
dc.typeJournal Articleen_AU
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