Modeling bubble breakup from laboratory to industrial scale

The Hamburg University of Technology and of Applied Sciences employ Simcenter M-Star to simulate the breakup of gaseous bubbles in a liquid phase using a new Kelvin–Voigt-based spring–damper model derived from Lagrangian analysis. The model tracks individual bubbles through the flow, incorporating their history, and enables cost-efficient simulations across scales from laboratory vessels to large industrial reactors. Results, validated against optical experimental data from an aerated stirred tank reactor, demonstrate the model’s effectiveness in capturing bubble dynamics under varying stirrer frequencies.