Model for pattern formation of granular matter on vibratory conveyors

Michael Grevenstette and Stefan J. Linz

Chaos, Solitons & Fractals, 2009, vol. 39, issue 4, 1896-1902

Abstract: Recently, Götzendorfer et al. [Götzendorfer 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.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:39:y:2009:i:4:p:1896-1902

DOI: 10.1016/j.chaos.2007.06.101

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