Dynamics of monodisperse bubble cluster rise in viscous liquid with a surfactant
V.A. Arkhipov, A.S. Usanina, R.A. Churkin
Tomsk State University, Tomsk, Russia
Keywords: bubble cluster, surfactant, viscous liquid, drag coefficient, experimental study
Abstract
The paper presents the results of experimental study for rising a cluster of monodisperse gas bubbles in viscous liquid with/without surfactant for the Reynolds number in the range Re = 0.01 ÷ 1. The influence of surfactant type on the dynamics the bubble cluster rise has been analyzed. The qualitative pattern of monodisperse bubbles cluster rise was defined as a function of initial volumetric concentration in the range СV = 0,001 ÷ 0,04. New experimental data were obtained on velocity and drag coefficient for a compact cluster of monosize bubbles rising in a liquid with/without surfactant (both for contact and contactless type of bubble rising.
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