Conference Proceedings Paper
Numerical Predictions of Bubbly Two-Phase Flows with Openfoam
NURETH-14 - 2011 September 25-30
Edouard Michta (KTH)
Kai Fu (KTH)
Henryk Anglart (Royal Institute of Technology)
Kristian Angele (Vattenfall R&D, Sweden)
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.
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