Generation and trajectory control of water drops able to bounce on a flat water surface

Under some conditions, a water droplet can bounce on a flat water surface. This paper contains a qualitative analysis of the bouncing phenomenon that leads to try to obtain drops with a nearly tangential incidence, the smallest radius and the highest velocity possible. We describe the experimental s...

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Main Authors: Gouiller Clément, Guittonneau Axel, Jacquot Léa
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:Emergent Scientist
Subjects:
Online Access:https://emergent-scientist.edp-open.org/articles/emsci/full_html/2017/01/emsci170001/emsci170001.html
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author Gouiller Clément
Guittonneau Axel
Jacquot Léa
author_facet Gouiller Clément
Guittonneau Axel
Jacquot Léa
author_sort Gouiller Clément
collection DOAJ
description Under some conditions, a water droplet can bounce on a flat water surface. This paper contains a qualitative analysis of the bouncing phenomenon that leads to try to obtain drops with a nearly tangential incidence, the smallest radius and the highest velocity possible. We describe the experimental setup that we built, able to throw unique droplets at typical speed v ~ 1 m.s−1, radius R ~ 4 × 10−4 m and impact angle θ ~ 15° with respect to the surface. Up to 4 bounces were experimentally observed. The experimental results’ plot shows the statistical behaviour of the bouncing process: the initial conditions are not sufficient to predict the trajectory and consequently the number of bounces.
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spelling doaj.art-59fe1eca61724ca99cd8285010fdbb122022-12-21T21:28:12ZengEDP SciencesEmergent Scientist2556-87792017-01-011110.1051/emsci/2017001emsci170001Generation and trajectory control of water drops able to bounce on a flat water surfaceGouiller ClémentGuittonneau AxelJacquot LéaUnder some conditions, a water droplet can bounce on a flat water surface. This paper contains a qualitative analysis of the bouncing phenomenon that leads to try to obtain drops with a nearly tangential incidence, the smallest radius and the highest velocity possible. We describe the experimental setup that we built, able to throw unique droplets at typical speed v ~ 1 m.s−1, radius R ~ 4 × 10−4 m and impact angle θ ~ 15° with respect to the surface. Up to 4 bounces were experimentally observed. The experimental results’ plot shows the statistical behaviour of the bouncing process: the initial conditions are not sufficient to predict the trajectory and consequently the number of bounces.https://emergent-scientist.edp-open.org/articles/emsci/full_html/2017/01/emsci170001/emsci170001.htmlbouncing water dropletsleidenfrost slideweber numbersuperhydrophobic surface
spellingShingle Gouiller Clément
Guittonneau Axel
Jacquot Léa
Generation and trajectory control of water drops able to bounce on a flat water surface
Emergent Scientist
bouncing water droplets
leidenfrost slide
weber number
superhydrophobic surface
title Generation and trajectory control of water drops able to bounce on a flat water surface
title_full Generation and trajectory control of water drops able to bounce on a flat water surface
title_fullStr Generation and trajectory control of water drops able to bounce on a flat water surface
title_full_unstemmed Generation and trajectory control of water drops able to bounce on a flat water surface
title_short Generation and trajectory control of water drops able to bounce on a flat water surface
title_sort generation and trajectory control of water drops able to bounce on a flat water surface
topic bouncing water droplets
leidenfrost slide
weber number
superhydrophobic surface
url https://emergent-scientist.edp-open.org/articles/emsci/full_html/2017/01/emsci170001/emsci170001.html
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AT jacquotlea generationandtrajectorycontrolofwaterdropsabletobounceonaflatwatersurface