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Droplets in isotropic turbulence: deformation and breakup statistics

Published online by Cambridge University Press:  03 August 2018

Samriddhi Sankar Ray  and
Dario Vincenzi Open the ORCID record for Dario Vincenzi [Opens in a new window]
Samriddhi Sankar Ray
Affiliation:
International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore 560089, India
Dario Vincenzi*
Affiliation:
Université Côte d’Azur, CNRS, LJAD, 06108 Nice, France
*
†Email address for correspondence: dario.vincenzi@unice.fr
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Abstract

The statistics of the deformation and breakup of neutrally buoyant sub-Kolmogorov ellipsoidal drops is investigated via Lagrangian simulations of homogeneous isotropic turbulence. The mean lifetime of a drop is also studied as a function of the initial drop size and the capillary number. A vector model of a drop previously introduced by Olbricht et al. (J. Non-Newtonian Fluid Mech., vol. 10, 1982, pp. 291–318) is used to predict the behaviour of the above quantities analytically.

JFM classification

Drops and Bubbles: Drops Turbulent Flows: Isotropic turbulence
Type
JFM Papers
Information
Journal of Fluid Mechanics , Volume 852 , 10 October 2018 , pp. 313 - 328
Copyright
© 2018 Cambridge University Press 

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