Self-similar breakup of near-inviscid liquids.
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
1550-2376
Volume Title
Publisher
American Physical Society (APS)
Publisher DOI
Sponsorship
Engineering and Physical Sciences Research Council (EP/G029458/1)
Engineering and Physical Sciences Research Council (EP/H018913/1)
Engineering and Physical Sciences Research Council (EP/H018913/1)
this work was sponsored by EPSRC grant number RG55605