In this study

based on the Luo bubble coalescence model

a model correction factor C

e

for pressures according to the literature experimental results was introduced in the bubble coalescence efficiency term. Then

a coupled modified population balance model (PBM) with computational fluid dynamics (CFD) was used to simulate a high-pressure bubble column. The simulation results with and without C

e

were compared with the experimental data. The modified CFD-PBM coupled model was used to investigate its applicability to broader experimental conditions. These results showed that the modified CFD-PBM coupled model can predict the hydrodynamic behaviors under various operating conditions.