NUMERICAL PREDICTIONS OF BUBBLY TWO-PHASE FLOWS WITH OPENFOAM
2011 (English)In: Proceedings of the 14th International Topical Meeting on Nuclear Reactor Thermal-Hydraulics, 2011Conference paper (Refereed)
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
Research subject SRA - Energy
IdentifiersURN: urn:nbn:se:kth:diva-80399OAI: oai:DiVA.org:kth-80399DiVA: diva2:496286
NURETH-14, Toronto, Ontario, September 25-30, 2011
QC 201204102012-02-092012-02-092012-04-10Bibliographically approved