Bulletin of the American Physical Society
61st Annual Meeting of the APS Division of Fluid Dynamics
Volume 53, Number 15
Sunday–Tuesday, November 23–25, 2008; San Antonio, Texas
Session MH: Surface Tension Effects I
8:00 AM–10:10 AM,
Tuesday, November 25, 2008
Room: 101B
Chair: Chao Sun, University of Twente
Abstract ID: BAPS.2008.DFD.MH.10
Abstract: MH.00010 : Dynamical Origami
9:57 AM–10:10 AM
Preview Abstract
Abstract
Authors:
Christophe Josserand
(Universit\'e Pierre et Marie Curie, Institut d'Alembert, Paris)
Arnaud Antkowiak
(Universit\'e Pierre et Marie Curie, Institut d'Alembert, Paris)
Fabien Ch\'eranc\'e
(Universit\'e Pierre et Marie Curie, Institut d'Alembert, Paris)
A drop falling on a thin elastic sheet is rapidly trapped after impact by self-folding of the sheet around the drop. This trapping process, due to capillary forces, occurs on the fast timescale of hydrophobic rebound. The resulting packed drop presents a complex three-dimensional shape, characteristic of the interplay between elasticity and capillarity (Py \textit{et al.}, \textit{Phys. Rev. Lett.} \textbf{98}, 2007). We study experimentally the encapsulation dynamics with high-speed video camera. A shape selection exhibited by the system is evidenced. The role played by the different parameters of impact (drop radius, impact velocity...) in the final shape of this ``dynamical origami'' is eventually discussed.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2008.DFD.MH.10
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