Dynamics of bubble deformation and breakup in decaying isotropic turbulence

Bubbly flows are present in a multitude of processes in both natural and industrial systems. One critical phenomenon is bubble fragmentation, which drives interfacial area and mass/momentum transfer. Direct Numerical Simulations (DNS) of turbulent two-phase bubbly flows allow for improved control of physical parameters and access to flow variables which are challenging to obtain from traditional experiments. By performing DNS of turbulent bubble fragmentation at a moderate Weber number and varying the bubble diameter around the integral turbulence length scale, we examine the exchange between turbulent kinetic energy (TKE) and surface energy, as well as other local quantities.