CUED Publications database

Self-similar breakup of near-inviscid liquids

Castrejón-Pita, JR and Castrejón-Pita, AA and Hinch, EJ and Lister, JR and Hutchings, IM (2012) Self-similar breakup of near-inviscid liquids. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 86. ISSN 1539-3755

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Abstract

The final stages of pinchoff and breakup of dripping droplets of near-inviscid Newtonian fluids are studied experimentally for pure water and ethanol. High-speed imaging and image analysis are used to determine the angle and the minimum neck size of the cone-shaped extrema of the ligaments attached to dripping droplets in the final microseconds before pinchoff. The angle is shown to steadily approach the value of 18.0 ±0.4, independently of the initial flow conditions or the type of breakup. The filament thins and necks following a τ2 /3 law in terms of the time remaining until pinchoff, regardless of the initial conditions. The observed behavior confirms theoretical predictions. © 2012 American Physical Society.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div E > Production Processes
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:29
Last Modified: 16 Dec 2014 19:06
DOI: 10.1103/PhysRevE.86.015301