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.A13.6
Abstract: A13.00006 : Splashing of a water drop containing a few particles*
9:05 AM–9:18 AM
Presenter:
Weiwei Zhao
(Xi'an Jiaotong Univ)
Authors:
Weiwei Zhao
(Xi'an Jiaotong Univ)
Shiji Lin
(University of Electronic Science and Technology of China)
Longquan Chen
(University of Electronic Science and Technology of China)
Sigurdur T. Thoroddsen
(King Abdullah University of Science and Technology)
Marie-Jean Thoraval
(Xi'an Jiaotong Univ)
We study the effects of adding one or a few solid particles in a drop impacting onto a solid surface. The solid particles are inserted at the bottom of the drop before it impacts onto a solid surface at different impact velocities. The particles first hit the solid surface and rebounds vertically, first through the drop and then eventually emerging from its apex. For the case of a single particle, we have systematically varied the particle size, density and impact velocity, to characterize the velocity threshold above which the particle separates from the drop. We have then extended the study to adding up to four particles simultaneously in the impacting drop. We propose some scaling arguments to model the separation of the particle and the fascinating splashing morphology observed.
*M.-J.T. acknowledges the financial support from the National Natural Science Foundation of China (grant nos 11542016 and 11702210) and the 111 project (B18040). M.-J.T. is also supported by the Cyrus Tang Foundation through the Tang Scholar program, and by the Thousand Young Talents Program of China.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.A13.6
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