Dispersion of droplet clouds in turbulence

H. Bocanegra Evans, N.J. Dam, G. Bertens, D.D. van der Voort, W. van de Water

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)
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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.
Original languageEnglish
Article number164501
Number of pages5
JournalPhysical Review Letters
Volume117
DOIs
Publication statusPublished - 2016

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