Changing reference frame: insights from unsteady fragmentation

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• Lydia Bourouiba, Massachusetts Institute of Technology
• Tuesday 23 May 2023, 11:30-12:30
• MR5.

If you have a question about this talk, please contact Prof. Jerome Neufeld.

Unsteady fragmentation of fluids into droplets is ubiquitous in industrial, environmental, and health-related processes. Despite the complexity and diversity of modes of unsteady fluid fragmentation into droplets, universality across geometry and fluid systems emerges. We present our joint experimental and theoretical work and discuss the development toward a general description of how changing the frame of reference, to account for non-inertial effects, and to disentangle the nonlinear dynamics involved, enabled us to elucidate how unsteadiness governs the impulsive breakup of a drop upon impact, and how the skewness of the distributions of final spray droplet sizes and speeds is selected.

This talk is part of the Fluid Mechanics (DAMTP) series.

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