Abstract
A strain-rate dependent rheology for granular materials with a constant cohesion, is proposed and applied in the case of a flow down an inclined channel. The results obtained show that a plug flow zone appears below the free surface and show that low cohesion may affect drastically the flow behaviour when the inclination of the channel is close to the repose angle. These results give also a basic understanding of h stop, the depth of the remaining granular layer on an inclined channel, treating dilatancy like a cohesion-like behaviour.
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de Ryck, A. Granular flows down inclined channels with a strain-rate dependent friction coefficient. Part II: cohesive materials. Granular Matter 10, 361–367 (2008). https://doi.org/10.1007/s10035-008-0106-2
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DOI: https://doi.org/10.1007/s10035-008-0106-2