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Velocity fields of granular flows down a rough incline: A DEM investigation

Lo, CY; Bolton, MD; Cheng, YP; (2010) Velocity fields of granular flows down a rough incline: A DEM investigation. Granular Matter , 12 (5) 477 - 482. 10.1007/s10035-010-0212-9.

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Abstract

This paper describes a statistical method to explore the velocity profiles of granular flows down rough inclines. Using 3D Discrete Element Method (DEM), granular material is released from a box onto a slope and allowed to flow indefinitely. Fluctuating velocity fields are observed, as particle motions become more dynamic and agitated. Linear regression is used to decompose the fluctuating velocity field into a best-fit velocity profile and a fluctuating component. Analysis shows that the slope inclination has a considerable influence on the rheology, in terms of both the fluctuating velocity and the shear rate of the flow. © 2010 Springer-Verlag.

Type:Article
Title:Velocity fields of granular flows down a rough incline: A DEM investigation
DOI:10.1007/s10035-010-0212-9
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Civil, Environmental and Geomatic Engineering

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