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Updated: Mar 12, 2026

Glass-Based Devices to Generate Drops and Emulsions
Published on: April 5, 2022
Dispersion of Droplet Clouds in Turbulence
Humberto Bocanegra Evans1, Nico Dam2, Guus Bertens1
1Physics Department, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
Abstract:
We measure the absolute dispersion of clouds of monodisperse, phosphorescent droplets in turbulent air by means of high-speed image-intensified video recordings. Laser excitation allows the initial preparation of well-defined, pencil-shaped luminous droplet clouds in a completely nonintrusive way. We find that the dispersion of the clouds is faster than the dispersion of fluid elements. We speculate that preferential concentration of inertial droplet clouds is responsible for the enhanced dispersion.
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