TY - JOUR

T1 - Swirling granular solidlike clusters

AU - Scherer, Michael A.

AU - Kötter, Karsten

AU - Markus, Mario

AU - Goles, Eric

AU - Rehberg, Ingo

PY - 2000

Y1 - 2000

N2 - Experiments and three-dimensional numerical simulations are presented to elucidate the dynamics of granular material in a cylindrical dish driven by a horizontal, periodic motion. The following phenomena are obtained both in the experiments and in the simulations: First, for large particle numbers N the particles describe hypocycloidal trajectories. In this state the particles are embedded in a solidlike cluster (“pancake”) which counter-rotates with respect to the external driving (reptation). Self-organization within the cluster occurs such that the probability distribution of the particles consists of concentric rings. Second, the system undergoes phase transitions. These can be identified by changes of the quantity [Formula Presented] [Formula Presented] is the mean kinetic energy) between zero (rotation), positive (reptation), and negative values (appearance of the totality of concentric rings).

AB - Experiments and three-dimensional numerical simulations are presented to elucidate the dynamics of granular material in a cylindrical dish driven by a horizontal, periodic motion. The following phenomena are obtained both in the experiments and in the simulations: First, for large particle numbers N the particles describe hypocycloidal trajectories. In this state the particles are embedded in a solidlike cluster (“pancake”) which counter-rotates with respect to the external driving (reptation). Self-organization within the cluster occurs such that the probability distribution of the particles consists of concentric rings. Second, the system undergoes phase transitions. These can be identified by changes of the quantity [Formula Presented] [Formula Presented] is the mean kinetic energy) between zero (rotation), positive (reptation), and negative values (appearance of the totality of concentric rings).

UR - http://www.scopus.com/inward/record.url?scp=0001660960&partnerID=8YFLogxK

U2 - 10.1103/PhysRevE.61.4069

DO - 10.1103/PhysRevE.61.4069

M3 - Article

AN - SCOPUS:0001660960

VL - 61

SP - 4069

EP - 4077

JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

SN - 1539-3755

IS - 4

ER -