Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session A13: Drops: Splashing
8:00 AM–9:31 AM,
Sunday, November 18, 2018
Georgia World Congress Center
Room: B218
Chair: Arne Pearlstein, University of Illinois Urbana-Champaign
Abstract ID: BAPS.2018.DFD.A13.1
Abstract: A13.00001 : Ejecta, corolla and splashes from drop impacts on viscous fluids
8:00 AM–8:13 AM
Presenter:
Christophe Josserand
(LadHyX, UMR 7646-CNRS)
Authors:
Christophe Josserand
(LadHyX, UMR 7646-CNRS)
Florence Marcotte
(Institut D'Alembert, Sorbonne Université & CNRS)
Guy-Jean Michon
(Institut D'Alembert, Sorbonne Université & CNRS)
Thomas Seon
(Institut D'Alembert, Sorbonne Université & CNRS)
drop impacts on various substrates that continuously transition from low-viscosity liquids to almost solids. We show that the generic corolla spreading out from the impact point consists of two distinct sheets, namely an ejecta sheet fed by the drop liquid and a Peregrine sheet fed by the substrate liquid, which evolve on separated timescales. These two sheets contribute to a varying extent to the corolla overall dynamics and splashing, depending in particular on the viscosity ratio between the two liquids.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.A13.1
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