Session B52: Granular Media: Flow and Structure

11:15 AM–2:15 PM, Monday, February 27, 2012
Room: 153C

Sponsoring Unit: GSNP
Chair: Wolfgang Losert, University of Maryland

Abstract ID: BAPS.2012.MAR.B52.14

Abstract: B52.00014 : Densest columnar structures of hard spheres from sequential deposition

1:51 PM–2:03 PM

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  Ho-Kei Chan
    (Foams \& Complex Systems, School of Physics, Trinity College Dublin, Ireland)

The rich variety of densest columnar structures of identical hard spheres inside a cylinder can surprisingly be constructed from a simple and computationally fast sequential deposition of cylinder-touching spheres, if the cylinder-to-sphere diameter ratio D is within [1,2.7013]. This provides a direction for theoretically deriving all these densest structures and for constructing such densest packings with nano-, micro-, colloidal or charged particles, which all self-assemble like hard spheres [\textit{Rapid Communication}, Physical Review E (in press)].

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