Direct Numerical Simulations of Bubble Break-Up in Turbulence
We present direct numerical simulations of bubble break-up in a three-dimensional homogeneous and isotropic turbulent flow. We consider the effect of the turbulent Reynolds number and the bubble Weber number on the break-up dynamics, the number of child bubble created together with their size and the break-up frequency. An ensemble of simulation is done in order to study these quantities statistically. For Weber number slightly above the critical value number, we retrieve binary break-up with two child bubble of similar size, while for large Weber number, we observe more complex break-up patterns with successive break-up events and the formation of a large number of much smaller bubbles.
L. Deike et al., "Direct Numerical Simulations of Bubble Break-Up in Turbulence," Proceedings of the 72nd Annual Meeting of the APS Division of Fluid Dynamics (2019, Seattle, WA), American Physical Society (APS), Nov 2019.
72nd Annual Meeting of the APS Division of Fluid Dynamics (2019: Nov. 23-26, Seattle, WA)
Mechanical and Aerospace Engineering
Article - Conference proceedings
© 2019 American Physical Society (APS), All rights reserved.
26 Nov 2019