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Plethora of transitions during breakup of liquid filaments

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2];  [3];  [3];  [1];  [4];  [4];  [3]
  1. Department of Engineering, University of Cambridge, Cambridge CB3 0FS, United Kingdom,
  2. Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, United Kingdom,
  3. School of Chemical Engineering, Purdue University, West Lafayette, IN 47907-1283, and
  4. Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 0WA, United Kingdom
Significance

Fluid flows, governed by nonlinear equations, permit formation of singularities. Often, singularities are artifacts of neglecting physical effects. However, free-surface flows exhibit observable singularities including filament pinch-off. As filaments thin, slightly (highly) viscous filaments are expected from theory to transition from an inertial (viscous) regime where viscosity (density) is negligible to an inertial–viscous regime where viscous and inertial effects are important. Previous works show this transition either does not occur or occurs for filament radii well below theoretical predictions. We demonstrate that thinning filaments unexpectedly pass through a number of intermediate transient regimes, thereby delaying onset of the final regime. The findings raise the question if similar dynamical transitions arise in problems that are not necessarily hydrodynamic in nature.

Research Organization:
Purdue Univ., West Lafayette, IN (United States); Univ. of Cambridge (United Kingdom)
Sponsoring Organization:
Chevron Corporation (United States); Engineering and Physical Sciences Research Council (EPSRC) (United Kingdom); John Fell Oxford Univ. Press Research Fund (United Kingdom); Procter & Gamble (United States); Royal Society (United Kingdom); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Contributing Organization:
Univ. of Oxford (United Kingdom)
Grant/Contract Number:
FG02-96ER14641
OSTI ID:
1235161
Alternate ID(s):
OSTI ID: 1349047
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 15 Vol. 112; ISSN 0027-8424
Publisher:
Proceedings of the National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

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