The new model predicts the breakup of gaseous bubbles in a continuous liquid phase by treating each bubble as a spring-damper system (Kelvin-Voigt element). The model derives the outer force from Lagrangian analysis of the flow field's stretching rate, adhering to physical principles without arbitrary parameters. Each bubble's individual history is considered, and the model enables numerical simulations across scales from 3 L to 15 m³. Its simplicity offers a favorable cost-benefit ratio. Results are compared to experimental data from optical measurements in a 200 L aerated stirred tank reactor at varying stirrer frequencies.
Weiland, C., von Kameke, A., Schlüter, M. (2024). Trajectory-based breakup modelling for dense bubbly flows. Chemical Engineering Journal 499, 155726.
