  We study the effect of turbulence on collisions between a finite-size bubble
and small inertial particles based on interface-resolved simulations. Our
results show that the interaction with the flow field around the bubble remains
the dominant effect. Nonlinear dependencies in this process can enhance the
turbulent collision rate by up to 100\% compared to quiescent flow.
Fluctuations in the bubble slip velocity during the interaction with the
particle additionally increase the collision rate. We present a
frozen-turbulence model that captures the relevant effects providing a
physically consistent framework to model collisions of small inertial particles
with finite-sized objects in turbulence.
