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Self-similar breakup of near-inviscid liquids.


Type

Article

Change log

Authors

Castrejón-Pita, JR 
Castrejón-Pita, AA 
Hinch, EJ 
Lister, JR 
Hutchings, IM 

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 τ(2/3) law in terms of the time remaining until pinchoff, regardless of the initial conditions. The observed behavior confirms theoretical predictions.

Description

Keywords

Computer Simulation, Ethanol, Models, Chemical, Rheology, Viscosity, Water

Journal Title

Phys Rev E Stat Nonlin Soft Matter Phys

Conference Name

Journal ISSN

1539-3755
1550-2376

Volume Title

Publisher

American Physical Society (APS)
Sponsorship
Engineering and Physical Sciences Research Council (EP/G029458/1)
Engineering and Physical Sciences Research Council (EP/H018913/1)
this work was sponsored by EPSRC grant number RG55605