620463.fig.004a
(a)
620463.fig.004b
(b)
620463.fig.004c
(c)
620463.fig.004d
(d)
Figure 4: Comparison of predicted and experimental data of Kocamustafaogullari and Wang [17] for superficial gas velocity of 0.50 m/s, superficial liquid velocity of 5.1 m/s, and volume fraction of 0.080; (a) gas volume fraction, (b) interfacial area concentration, (c) Sauter mean bubble diameter, and (d) axial liquid velocity.