Article Dans Une Revue EPJ Web of Conferences Année : 2021

Effect of dissipation in rapid-gravitational granular flows

Yajuan Zhu

Résumé

We investigate numerically high speed granular flows down an incline and focus our attention on the influence of the restitution coefficient e of binary collisions on the nature of the flow regimes. We show in particular that e plays a major role in rapid flows. Decreasing e leads in general to denser flows but also quicker flows. The increase of the mean flow velocity with decreasing e is explained as the result of the clustering instability which produces a dense and cold core moving very fast as a plug.

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hal-03451006 , version 1 (26-11-2021)

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Yajuan Zhu, Renaud Delannay, Alexandre Valance. Effect of dissipation in rapid-gravitational granular flows. EPJ Web of Conferences, 2021, 249, pp.03046. ⟨10.1051/epjconf/202124903046⟩. ⟨hal-03451006⟩
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