TY - JOUR N2 - The paper presents a photographic analysis of the break-up of gas bubbles flowing out of the outlets of a self-aspirating disk impeller. It was found that bubbles detached from the interfacial surface most often disintegrate to form several daughter bubbles. Further in the work, the population balance model was verified for several formulas describing the bubble break-up rate. It has been found that a good fit to the experimental data is provided by the formula given by Laakkonen for 5 daughter bubbles. The possibility of using the Monte Carlo method to model the bubble break-up processwas also determined. For this method, a good agreement of results was achieved for the division into a maximum of 10 daughter bubbles. In the case of this method it was also found necessary to use the function of break-up frequency at a higher rate for smaller bubbles. L1 - http://www.journals.pan.pl/Content/113705/PDF/4-Stelmach.pdf L2 - http://www.journals.pan.pl/Content/113705 PY - 2020 IS - No 1 EP - 57 DO - 10.24425/cpe.2019.130222 KW - self-aspirating disk impeller KW - bubble break-up KW - population balance model A1 - Stelmach, Jacek A1 - Musowski, Radosław PB - Polish Academy of Sciences Committee of Chemical and Process Engineering VL - vol. 41 DA - 2020.04.20 T1 - Verification of models of gas bubble break-up caused by eddies generated by a self-aspirating disk impeller SP - 45 UR - http://www.journals.pan.pl/dlibra/publication/edition/113705 T2 - Chemical and Process Engineering ER -