title: Dense packings of spheres in cylinders: simulations.
abstract: We study the optimal packing of hard spheres in an infinitely long cylinder, using simulated annealing, and compare our results with the analogous problem of packing disks on the unrolled surface of a cylinder. The densest structures are described and tabulated in detail up to D/d=2.873 (ratio of cylinder and sphere diameters). This extends previous computations into the range of structures which include internal spheres that are not in contact with the cylinder.
authors.affiliation: Institute of Mathematics and Physics, Aberystwyth University, Penglais, Aberystwyth, Ceredigion, Wales, SY23 3BZ, United Kingdom.
authors.forename: A
authors.initials: A
authors.lastname: Mughal
authors.forename: H K
authors.initials: HK
authors.lastname: Chan
authors.forename: D
authors.initials: D
authors.lastname: Weaire
authors.forename: S
authors.initials: S
authors.lastname: Hutzler