| Issue |
Europhys. Lett.
Volume 40, Number 4, November II 1997
|
|
|---|---|---|
| Page(s) | 387 - 392 | |
| Section | Classical areas of phenomenology | |
| DOI | https://doi.org/10.1209/epl/i1997-00476-x | |
| Published online | 01 September 2002 | |
Dilation of a vibrated granular layer
Department of Physics and Center for Nonlinear and Complex Systems
Duke University, Durham NC, 27708-0305, USA
Received:
20
March
1997
Accepted:
3
October
1997
We report measurements of the dilation, 
, of a vertically
shaken sand heap in the presence of air. These measurements were
carried out for dimensionless accelerations 
, for particle diameters of 
, for
layer height to particle diameter ratios of 
, and for shaking amplitudes of 
.
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.
PACS: 46.10.+z – Mechanics of discrete systems / 47.20.-k – Hydrodynamic stability
© EDP Sciences, 1997
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