TY - JOUR
T1 - Close-Packed Floating Clusters
T2 - Granular Hydrodynamics Beyond the Freezing Point?
AU - Meerson, Baruch
AU - Paschel, Thorsten
AU - Bromberg, Yaron
PY - 2003/7/8
Y1 - 2003/7/8
N2 - Monodisperse granular flows often develop regions with hexagonal close packing of particles. We investigate this effect in a system of inelastic hard spheres driven from below by a athermal late. Molecular dynamics simulations show, in a wide range of parameters, a close-packed cluster supported by a low-density region. Surprisingly, the steady-state density profile, including the close-packed cluster part, is well described by a variant of Navier-Stokes granular hydrodynamics (NSGH). We suggest a simple explanation for the success of NSGH beyond the freezing point.
AB - Monodisperse granular flows often develop regions with hexagonal close packing of particles. We investigate this effect in a system of inelastic hard spheres driven from below by a athermal late. Molecular dynamics simulations show, in a wide range of parameters, a close-packed cluster supported by a low-density region. Surprisingly, the steady-state density profile, including the close-packed cluster part, is well described by a variant of Navier-Stokes granular hydrodynamics (NSGH). We suggest a simple explanation for the success of NSGH beyond the freezing point.
UR - http://www.scopus.com/inward/record.url?scp=0042530277&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.91.024301
DO - 10.1103/PhysRevLett.91.024301
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AN - SCOPUS:0042530277
SN - 0031-9007
VL - 91
JO - Physical Review Letters
JF - Physical Review Letters
IS - 2
ER -