Experimental study of bubble size distribution in a liquid column exposed to a rotating magnetic field

Annular Gap Bubble Column: Experimental Investigation and Computational Fluid Dynamics Modeling

“…Different studies have sampled a different number of bubbles: between 50 and 100 [27], 200 [28], 250 [29], 300 [30] and between 250 and 300 [25]. In this study, 2590 bubbles have been selected using 32 photos taken to obtain time-averaged results.…”

Comprehensive experimental investigation of counter-current bubble column hydrodynamics: Holdup, flow regime transition, bubble size distributions and local flow properties

“…Various studies have sampled different numbers of bubblesbetween 50 and 100 (Lage and Espósito, 1999), 200 (Wongsuchoto et al, 2003), 250 (Rakoczy and Masiuk, 2009), 300 (Hanselmann and Windhab, 1998), between 250 and 300 (Aloufi, 2011) and 100 (Passos et al, 2015). In this study, for each case, at least 800 bubbles were selected using two (or more) photos.…”

The dual effect of viscosity on bubble column hydrodynamics

“…Various studies have sampled different numbers of bubbles-between 50 and 100 (Lage and Espósito, 1999), 200 (Wongsuchoto et al, 2003), 250 (Rakoczy and Masiuk, 2009), 300 (Hanselmann and Windhab, 1998), between 250 and 300 (Aloufi, 2011) and 100 (Passos et al, 2015). The image analysis has been used for five gas superficial velocities and for the different solutions tested.…”