Bubble dynamics in homogeneous shear turbulence

Although homogeneous and isotropic turbulence is the most canonical example of turbulence, it can be rarely found in chemical and biological reactors that have to deal with bubble or oil breakups, in which flows are often generated by impellers with strong and persistent shear. The specific effect of persistent mean shear on bubble breakup remains elusive. In this study, a new experimental facility featuring homogeneous shear turbulence with the mean shear as strong as the local turbulent shear will be introduced. The preliminary results of the bubble morphology throughout the breakup process from this system will be discussed. These experimental results offer valuable insights into the mechanisms underlying bubbly flow and oil emulsion formation in turbulent environments.