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NUMERICAL PREDICTIONS OF BUBBLY TWO-PHASE FLOWS WITH OPENFOAM
KTH, School of Engineering Sciences (SCI), Physics, Reactor Technology.
KTH, School of Engineering Sciences (SCI), Physics, Reactor Technology.
KTH, School of Engineering Sciences (SCI), Physics, Reactor Technology.ORCID iD: 0000-0001-5595-1952
2011 (English)In: Proceedings of the 14th International Topical Meeting on Nuclear Reactor Thermal-Hydraulics, 2011Conference paper, Published paper (Refereed)
Abstract [en]

A new model for simulation of bubbly two-phase flows has been developed and implemented into an open-source Computational Fluid Dynamics (CFD) code OpenFOAM. The model employs the two-fluid framework with closure relationships for the interfacial momentum transfer. The bubble size is calculated based on the solution of the interfacial area concentration equations. The predictions are validated against a wide range of experimental data containing measured void fraction, the phasic velocity and the interfacial area concentration. The new model demonstrates the ability to capture the wall peaking of void fraction for small bubbles. The predicted levels of void fraction and phasic velocities are in good agreement with measured data.

Place, publisher, year, edition, pages
2011.
National Category
Energy Engineering
Research subject
SRA - Energy
Identifiers
URN: urn:nbn:se:kth:diva-80399OAI: oai:DiVA.org:kth-80399DiVA: diva2:496286
Conference
NURETH-14, Toronto, Ontario, September 25-30, 2011
Funder
StandUp
Note
QC 20120410Available from: 2012-02-09 Created: 2012-02-09 Last updated: 2012-04-10Bibliographically approved

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Anglart, Henryk

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