Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session G00: Poster Session I (2pm- 5pm CST)
2:00 PM,
Tuesday, March 15, 2022
Room: McCormick Place Exhibit Hall F1
Abstract: G00.00363 : Splash-cups and rain dispersal of Marchantia polymorpha gemmae
Presenter:
Valentin LAPLAUD
(LadHyX)
Authors:
Valentin LAPLAUD
(LadHyX)
Christophe F Josserand
(CNRS)
Camille Duprat
(Ecole Polytechnique)
Arezki Boudaoud
(Ladhyx)
Our purpose is to study this dispersal mechanism by using a biomimetic approach. 3D-printed targets of 3mm diameter are impacted by drops of the same size travelling at 4m/s. We aim to understand the influence of the plant splash-cup geometry, especially the cone angle and the presence of decorations on its border, on the efficiency of this process. To this end we printed various shapes, ranging from the flat pillar to the high angle cone, each having or not border decorations. Drop impacts on the target are recorded with two high speed cameras at 10.000 fps from the side and from above. With these data we will devellop a simple model to explain the mechanism of jet formation depending on drop centering and on the geometrical parameters of the target.
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