Title

Direct Numerical Simulations of Bubble Break-Up in Turbulence

Abstract

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.

Meeting Name

72nd Annual Meeting of the APS Division of Fluid Dynamics (2019: Nov. 23-26, Seattle, WA)

Department(s)

Mechanical and Aerospace Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 American Physical Society (APS), All rights reserved.

Publication Date

26 Nov 2019

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