Flow of the  gas phase in counter current two-phase flow in a narrow vertical channel
 

vertical narrow channel

model (half channel)

grid

axial velocity distribution
comparison of experimental data with CFX results

Lioumbas, I.S., Mouza, A.A. and Paras, S.V. 2002 Local velocities inside the gas phase in counter current two-phase flow in a narrow vertical channel, Chemical Engineering Research & Design 80, 6, 667-673.