References of "Dorbolo, Stéphane"
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See detailBernal random loose packing through freeze-thaw cycling
Ludewig, François ULg; Vandewalle, Nicolas ULg; Dorbolo, Stéphane ULg et al

in Physical Review. E : Statistical, Nonlinear, and Soft Matter Physics (2015)

We study the effect of freeze-thaw cycling on the packing fraction of equal spheres immersed in water. The water located between the grains experiences a dilatation during freezing and a contraction ... [more ▼]

We study the effect of freeze-thaw cycling on the packing fraction of equal spheres immersed in water. The water located between the grains experiences a dilatation during freezing and a contraction during melting. After several cycles, the packing fraction converges to a particular value η∞ = 0.595 independently of its initial value η0. This behavior is well reproduced by numerical simulations. Moreover, the numerical results allow one to analyze the packing structural configuration. With a Vorono ̈ı partition analysis, we show that the piles are fully random during the whole process and are characterized by two parameters: the average Vorono ̈ı volume μv (related to the packing fractionη)andthestandarddeviationσv ofVorono ̈ıvolumes.Thefreeze-thawdrivingmodifythevolumestandard deviation σv to converge to a particular disordered state with a packing fraction corresponding to the random loose packing fraction ηBRLP obtained by Bernal during his pioneering experimental work. Therefore, freeze-thaw cycling is found to be a soft and spatially homogeneous driving method for disordered granular materials. [less ▲]

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See detailA capillary Archimedes’ screw
Darbois-Texier, Baptiste ULg; Dorbolo, Stéphane ULg

Conference (2014, November 23)

As used by Egyptians for irrigation and reported by Archimedes, a screw turning inside a hollow pipe can pull out a fluid againt gravity. At a centimetric scale, an analagous system can be found with a ... [more ▼]

As used by Egyptians for irrigation and reported by Archimedes, a screw turning inside a hollow pipe can pull out a fluid againt gravity. At a centimetric scale, an analagous system can be found with a drop pending on a rotating spiral which is tilted toward the horizontal. The ascent of the drop to the top of the spiral is considered and a theoretical model based on geometrical considerations is proposed. The climb of the drop is limited by the fluid deposition on the screw at high capillary number and by a centrifugation phenomenon. We find out the range of fluid proprities and spiral characteristics for which an ascending motion of the drop is possible. Finally we discuss the efficiency of such system to extract a fluid from a bath at a centrimetric scale. [less ▲]

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See detailGas dissolution in antibubble dynamics
Scheid, Benoit; Zawala, Jan; Dorbolo, Stéphane ULg

Conference (2014)

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See detailLeidenfrost effect: accurate drop shape modling and new scaling laws
Sobac, Benjamin; Rednikov, Alexey; Dorbolo, Stéphane ULg et al

Conference (2014)

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See detailResonant and antiresonant bouncing droplets
Hubert, Maxime ULg; Robert, Damien; Caps, Hervé ULg et al

Conference (2014)

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See detailLeidenfrost drops and micro-particles: organization and evaporation
Maquet, Laurent ULg; Colinet, Pierre; Dorbolo, Stéphane ULg

Conference (2014)

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See detailRotating ice blocks
Dorbolo, Stéphane ULg; Adami, Nicolas

Conference (2014)

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See detailGas dissolution in antibubble dynamics
Scheid, Benoit; Zawala, Jan; Dorbolo, Stéphane ULg

in Soft Matter (2014), 10

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See detailLeidenfrost effect: Accurate drop shape modeling and refined scaling laws
Sobac, Benjamin; Rednikov, Alexey; Dorbolo, Stéphane ULg et al

in Physical Review. E : Statistical, Nonlinear, and Soft Matter Physics (2014), 90

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See detailElectrically charged droplet: Case study of a simple generator
Brandenbourger, Martin ULg; Dorbolo, Stéphane ULg

in Canadian Journal of Physics (2014), 92

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See detailOrganization of microbeads in Leidenfrost drops
Maquet, Laurent ULg; Colinet, Pierre; Dorbolo, Stéphane ULg

in Soft Matter (2014), 10

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See detailDynamics of a grain-filled ball on a vibrating plate
Pacheco Vazquez, Felipe ULg; Ludewig, François ULg; Dorbolo, Stéphane ULg

in Physical Review Letters (2014), 113

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See detailMagnetic ghosts and monopoles
Vandewalle, Nicolas ULg; Dorbolo, Stéphane ULg

in New Journal of Physics (2014), 16

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See detailBouncing dynamics of a spring
Hubert, Maxime ULg; Ludewig, François ULg; Dorbolo, Stéphane ULg et al

in Physica D: Nonlinear Phenomena (2014), 272

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See detailRebound of a confined granular material: combination of a bouncing ball and a granular damper.
Pacheco Vazquez, Felipe ULg; Dorbolo, Stéphane ULg

in Scientific Reports (2013), 3(2158), 10103802158

A ball dropped over a solid surface bounces several times before a complete stop. The bouncing can be reduced by introducing a liquid into the ball; however, the first rebound remains largely unaffected ... [more ▼]

A ball dropped over a solid surface bounces several times before a complete stop. The bouncing can be reduced by introducing a liquid into the ball; however, the first rebound remains largely unaffected by the fluid. Granular materials can also work as dampers. We investigated the rebound of a container partially filled with a given mass of grains mi. During the collision, the kinetic energy of the container is partially transferred to the grains, the rebound is damped, and the fast energy dissipation through inter-particle collisions and friction decreases the bouncing time dramatically. For grain-filled cylinders, a completely inelastic collision (zero rebound) is obtained when mi≥1.5εomc, where εo and mc are the coefficient of restitution and mass of the empty container. For grain-filled spheres, the first rebound is almost undamped, but the second collision is completely inelastic if mi>>mc. These findings are potentially useful to design new granular damping systems. [less ▲]

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See detailOrganisation de micro-billes dans des gouttes en Leidenfrost
Maquet, Laurent ULg; Moreau, Florian ULg; Dorbolo, Stéphane ULg

Scientific conference (2013, January 24)

On s'intéresse au comportement de micro-billes hydrophiles (verre) introduites dans des gouttes en Leidenfrost. Il apparait que les billes sont piégées près de la surface et qu'elles forment, au cours de ... [more ▼]

On s'intéresse au comportement de micro-billes hydrophiles (verre) introduites dans des gouttes en Leidenfrost. Il apparait que les billes sont piégées près de la surface et qu'elles forment, au cours de l'évaporation de la goutte, une monocouche structurée. [less ▲]

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See detailSelf-coverage of Leidenfrost droplets
Maquet, Laurent ULg; Colinet, pierre; Moreau, Florian ULg et al

Poster (2013)

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See detailInfluence of the gravity on the discharge of a silo
Dorbolo, Stéphane ULg; Maquet, Laurent ULg; Brandenbourger, Martin ULg et al

in Granular Matter (2013), 15

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See detailThe role of the droplet deformations in the bouncing droplet dynamics
Terwagne, Denis ULg; Ludewig, François ULg; Vandewalle, Nicolas ULg et al

in Physics of Fluids (2013), 25

Detailed reference viewed: 52 (10 ULg)