Reference : Frozen Splash
Scientific congresses and symposiums : Poster
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/108740
Frozen Splash
English
Delon, Giles mailto [Université de Liège - ULg > Département de physique > Optofluidique >]
Terwagne, Denis mailto [Université de Liège - ULg > Département de physique > Physique statistique >]
Adami, Nicolas mailto [Université de Liège - ULg > Département de physique > Optofluidique >]
Bronfort, Ariane mailto [Université de Liège - ULg > Département de physique > Optofluidique >]
Vandewalle, Nicolas mailto [Université de Liège - ULg > Département de physique > Physique statistique >]
Dorbolo, Stéphane mailto [Université de Liège - ULg > Département de physique > Physique statistique >]
Caps, Hervé mailto [Université de Liège - ULg > Département de physique > Optofluidique >]
21-Nov-2010
No
No
International
63rd APS Division of Fluid Dynamics Meeting
21 novembre 2010 au 23 novembre 2011
American Physical Society
Long Beach
USA
[en] We have studied the splashing dynamics of water drops impacting granular layers. Depending on the drop kinetic energy, various shapes are observed for the resulting craters. Experimental parameters that have been considered are : the size of the millimetric droplets ; the height of the free fall, ranging from 1.5 cm to 100 cm ; and, the diam- eter of the grain. As the drop is impacting the sand layer, energy is dissipated and a splash of sand occurs. Meanwhile, surface tension, in- ertia and viscosity compete, leading to strong deformations of the drop which depend on the experimental conditions. Just after the drop en- ters into contact with the sand, imbibition takes place and increases the apparent viscosity of the fluid. The drop motion is stopped by this phenomenon. Images and fast-video recordings of the impact allowed to find scaling laws for the crater morphology and size.
<br />This abstract is related to a fluid dynamics video for the APS DFD gallery of fluid motion 2010.
Researchers
http://hdl.handle.net/2268/108740
also: http://hdl.handle.net/2268/110977

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