Conference Proceedings Paper
CFD Simulation of Adiabatic Two-Phase Flow in the Cap Bubble Regime Using the Two-Group Interfacial Area Transport Equations (IATE)
NURETH-14 - 2011 September 25-30
Deoras Prabhudharwadkar (Purdue University)
Martin Lopez De Bertodano (Purdue University)
John Buchanan (Bechtel Marine Propulsion Corporation, Bettis Laboratory)
Paul Guilbert (ANSYS UK Ltd.)
A multidimensional three-field two-fluid model with the two-group IATE is implemented for the
bubbly-cap bubble regime. The mechanisms of the two-group IATE bubble interactions that have
been proposed and validated in the past for one dimension are extended to a multi-dimensional
model. The CFD simulations were validated using the data of Sun et al.  where the phase
distribution, interfacial area concentration and velocity distribution in the cross-section for the two
bubble groups were measured using the four-sensor conductivity probe at four axial locations.
The results demonstrate the applicability of the two-group IATE model in three dimensions.
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