CFD simulation of large-scale bubble plumes: Comparisons against experiments

Modeling and simulation of the bubble-induced flow in wine fermentation vessels

“…The higher velocities occurred in upward direction, inside the bubble plume. These velocity ranges are in agreement with the data from large-scale bubble column experiments by Dhotre et al (2007) [32].…”

Influence of the lift force closures on the numerical simulation of bubble plumes in a rectangular bubble column

“…In the simple case of an inviscid flow around a sphere, C L = 0.5 (Drew and Lahey, 1987). This is the most commonly used value when modeling bubble columns (Buwa and Ranade, 2002;Delnoij et al, 1997Delnoij et al, , 1999Zhang et al, 2006) although, since a viscous flow actually exists, smaller positive values have also been used (C L = 0.01 (Lahey, 1990), C L = 0.1 (Dhotre and Smith, 2007), C L = 0.25-0.30 (Zun, 1980)). Nevertheless, in bubbly flows, bubble shapes change depending on the size of the bubble, on the physicochemical properties of the continuous phase and on the flow regimes developed inside the bubble column.…”

Water Model and CFD-PBM Coupled Model of Gas-Liquid-Slag Three-Phase Flow in Ladle Metallurgy

“…(4) where C l is a positive value and although considerable research efforts have been made, there are not generally accepted values or correlations to be used. [29][30][31] According to the correlations proposed by Tomiyama et al, 32,33) the sign of C l depends on the bubble size and the model proposed by them is applicable to the lift force on larger-scale deformation bubbles in the ellipsoidal and spherical cap regimes. In this work, the bubble size distribution is predicted by the population balance model and the influence of bubble size distribution on the lift force is also taken into consideration.…”