Modeling of drop breakage based on the whole energy spectrum: Considering the effect of dispersed‐phase viscosity

Abstract The drop viscosity may play an important role in determining drop size distribution in multiphase reactors. However, most of the existing breakage models could not reasonably predict the effect of drop viscosity in a relatively wide range. In this work, an improved model is developed by considering this effect on the breakage constraint and surface oscillation for multiple breakages. Besides, the whole energy spectrum (i.e., including energy‐containing, inertial and dissipation subranges simultaneously) with the bottleneck effect is considered to determine the turbulent parameters. The predictions of the present model and other breakage models are compared with the available experimental data for breakage frequency, daughter drop size distribution, and drop size distribution (with population balance equation). For both high‐viscosity and low‐viscosity drop breakages, the results show that the present model has a better prediction ability compared with other models. Its application range is relatively wider as a whole.