CFD Modeling of Boiling Flow in PSBT 5×5 Bundle

Three-dimensional computational fluid dynamics (CFD) method was used to model the boiling two-phase flow in one of the PSBT 5-by-5 rod bundle tests. The rod bundle with all the spacers was modeled explicitly using unstructured computational grids. The six-equation, two-fluid model with the wall boil...

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Bibliographic Details
Published inScience and technology of nuclear installations Vol. 2012; no. 2012; pp. 1 - 8
Main Authors Lo, Simon, Osman, Joseph
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Puplishing Corporation 2012
Hindawi Publishing Corporation
Hindawi Limited
Wiley
Subjects
Fluid dynamics
Geometry
Mathematical models
Studies
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Summary:Three-dimensional computational fluid dynamics (CFD) method was used to model the boiling two-phase flow in one of the PSBT 5-by-5 rod bundle tests. The rod bundle with all the spacers was modeled explicitly using unstructured computational grids. The six-equation, two-fluid model with the wall boiling model was used to model the boiling two-phase flows in the bundle. The computed void fractions compare well with the measured data at the measuring plane. In addition to the averaged void data, the CFD results give a very detailed picture of the flow and void distributions in the bundle and how they are affected by solid structures in the flow paths such as the spacer grids and mixing vanes.
ISSN:1687-6075
1687-6083
DOI:10.1155/2012/795935