Bulletin of the American Physical Society
APS March Meeting 2018
Volume 63, Number 1
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session L46: Drops and Bubbles I
11:15 AM–1:27 PM,
Wednesday, March 7, 2018
LACC
Room: 506
Sponsoring
Unit:
DFD
Chair: Thomas Brennan, Ferris State Univ
Abstract ID: BAPS.2018.MAR.L46.10
Abstract: L46.00010 : Drop solidification experiments on static and moving substrates, for varying feeding rates.*
1:03 PM–1:15 PM
Presenter:
Remy Herbaut
(Université Paris Diderot, Laboratory Matière et systèmes Complexes)
Authors:
Remy Herbaut
(Université Paris Diderot, Laboratory Matière et systèmes Complexes)
Philippe Brunet
(Université Paris Diderot, Laboratory Matière et systèmes Complexes)
Laurent Royon
(Université Paris Diderot, Laboratory LIED)
Laurent Limat
(Université Paris Diderot, Laboratory Matière et systèmes Complexes)
- In a first set of experiments, a solidifying liquid drop is fed with liquid at constant flow-rate through a thin needle. This problem generalizes the cusp formation problem («pointy ice drops») investigated recently (A. Marin et al. Phys. Rev. Lett. 113, 054301 (2014)). Depending on control parameters (initial angle and flow-rate), two very different shapes are observed, concave and convex, for which we provide a simple model, that is in very good agreement with experiments.
- In a second set of experiments, the drop of sits on a cold moving substrate. Instabilities of the advancing contact lines are observed with a transition between continuous sliding and stick-slip behavior. We also propose a simple kinematical model that well describes this unstationnary dynamics. Experiments that combine both effects (continuous supply and substrate motion) are also under way.
*This work is funded by the National Research Agency (ANR) (ICEWET project:
ANR-15-CE08-0031).
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.L46.10
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