Model for pattern formation of granular matter on vibratory conveyors

被引:3
|
作者
Grevenstette, Michael [1 ]
Linz, Stefan J. [1 ]
机构
[1] Univ Munster, Inst Theoret Phys, D-48149 Munster, Germany
关键词
LAYER;
D O I
10.1016/j.chaos.2007.06.101
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Recently, Gotzendorfer et al. [Gotzendorfer A, Kruelle CA, Rouijaa M. Granular surface waves in a vibratory conveyor. In: Garcia-Rojo R, Herrmann HJ, McNamara S, editors. Powders and grains, Stuttgart; 2005. p. 1185] have observed subharmonic propagating surface wave patterns if granular material on a trough is subject to a combination of vertical and horizontal periodic driving. The observed structures are non-stationary in space, drift with a constant mean velocity along the trough and oscillate subharmonically with half the driving frequency. We present a phenomenological model for the surface evolution of the granular material that qualitatively reproduces and explains important aspects of the experimentally observed patterns. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1896 / 1902
页数:7
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