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Granular flows down inclined channels with a strain-rate dependent friction coefficient. Part I: Non-cohesive materials

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Abstract

The flow of a granular material down an incline of finite width with a strain-rate dependent coefficient of friction and a conical yield criterion is semi-analytically obtained using a characteristic method for flows on a deep layer of grains. This analysis leads to a flow field with three distinct zones: a Bagnold-flow zone below the free surface, a dead-zone and a matching zone between the two, linked to slippage at the wall. A good agreement between the computed flow field and experimental data is obtained.

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Correspondence to Alain de Ryck.

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de Ryck, A., Ansart, R. & Dodds, J.A. Granular flows down inclined channels with a strain-rate dependent friction coefficient. Part I: Non-cohesive materials. Granular Matter 10, 353–360 (2008). https://doi.org/10.1007/s10035-008-0105-3

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  • DOI: https://doi.org/10.1007/s10035-008-0105-3

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