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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
2012 (English)In: Journal of Computational Multiphase Flows, ISSN 1757-482X, Vol. 4, no 4, 351-362 p.Article in journal (Refereed) Published
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 transport equation of the interfacial area concentration. The predictions are validated against selected data obtained in the DEDALE experiment and containing the measured void fraction, the phasic velocities and the interfacial area concentration. In general, good agreement between calculated and measured data is demonstrated; however, the relative phasic velocity is systematically over-predicted. The levels of void fraction and the observed wall void peaking are well captured in the calculations.

Place, publisher, year, edition, pages
2012. Vol. 4, no 4, 351-362 p.
Keyword [en]
Bubble size, Bubbly two-phase flow, Computational Fluid Dynamics codes, Interfacial area concentrations, Numerical predictions, Open-source, OpenFOAM, Transport equation, Two-fluid, Computational fluid dynamics, Forecasting, Two phase flow, Void fraction, Computer simulation
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-116188DOI: 10.1260/1757-482X.4.4.351ScopusID: 2-s2.0-84870844902OAI: diva2:589042

QC 20130116

Available from: 2013-01-16 Created: 2013-01-16 Last updated: 2013-01-16Bibliographically approved

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Michta, EdouardFu, KaiAnglart, Henryk
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