Publications [#245609] of Robert P. Behringer

Papers Published
  1. Doorn, EV; Behringer, RP, Dilation of a vibrated granular layer, Epl (Europhysics Letters), vol. 40 no. 4 (1997), pp. 387-392 [doi] .

    We report measurements of the dilation, δh, of a vertically shaken sand heap in the presence of air. These measurements were carried out for dimensionless accelerations 1.0 ≤ Γ ≤ 2.7, for particle diameters of 0.05 mm ≤ d ≤ 1.0 mm, for layer height to particle diameter ratios of 80 ≤ h0/d ≤ 140, and for shaking amplitudes of 0.66 mm ≤ a ≤ 6.65 mm. δh is mostly limited to a thin avalanching surface layer. The vertical motion of this layer is well described by a simple model of an inelastic bouncing ball, independent of other complex motion elsewhere.