The effect of gas phase dispersibility on characteristics of bubbly downflow
O.N. Kashinsky, V.V. Randin, P.D. Lobanov, and G.V. Bogoslovtsev
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
Pages: 597-603
Abstract
Results of investigating a co-current bubbly downflow in a vertical tube of the 20-mm inner diameter are presented. The two-phase flow was formed using a special mixer, which allows variation of gas bubble sizes. Void fraction, liquid phase velocity and its pulsation were measured by the electrochemical method. In comparison with a single-phase flow, it was noted that turbulent pulsations of liquid velocity in the two-phase flow are considerably suppressed. A significant effect of dispersed composition of a gas phase on average and pulsation flow characteristics was demonstrated.
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