Article (Scientific journals)
Threshold of gas-like to clustering transition in driven granular media in low-gravity environment
Noirhomme, Martial; Cazaubiel, Annette; Darras, Alexis et al.
2018In Europhysics Letters, 123 (14003)
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Abstract :
[en] Strongly driven granular media are known to undergo a transition from a gas-like to a cluster regime when the density of particles is increased. However, the main mechanism triggering this transition is not fully understood so far. Here, we investigate experimentally this transition within a 3D cell filled with beads that are driven by two face-to-face vibrating pistons in low gravity during parabolic flight campaigns. By varying large ranges of parameters, we obtain the full phase diagram of the dynamical regimes reached by the out-of-equilibrium system: gas, cluster or bouncing aggregate. The images of the cell recorded by two perpendicular cameras are processed to obtain the profiles of particle density along the vibration axis of the cell. A statistical test is then performed on these distributions to determinate which regime is reached by the system. The experimental results are found in very good agreement with theoretical models for the gas-cluster transition and for the emergence of the bouncing state. The transition is shown to occur when the typical propagation time needed to transmit the kinetic energy from one piston to the other is of the order of the relaxation time due to dissipative collisions.
Disciplines :
Physics
Author, co-author :
Noirhomme, Martial ;  Université de Liège - ULiège > Département de physique > Physique statistique
Cazaubiel, Annette
Darras, Alexis ;  Université de Liège - ULiège > Département de physique > Physique expér. de la matière molle et des syst. complexes
Falcon, Eric
Fischer, David
Garrabos, Yves
Lecoutre-Chabot, Carole
Merminod, Simon
Opsomer, Eric  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Palencia, Fabien
Schockmel, Julien ;  Université de Liège - ULiège > Département de physique > Physique statistique
Stannarius, Ralf
Vandewalle, Nicolas  ;  Université de Liège - ULiège > Département de physique > Physique statistique
More authors (3 more) Less
Language :
English
Title :
Threshold of gas-like to clustering transition in driven granular media in low-gravity environment
Publication date :
July 2018
Journal title :
Europhysics Letters
ISSN :
0295-5075
eISSN :
1286-4854
Publisher :
EDP Sciences, France
Volume :
123
Issue :
14003
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 August 2018

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