Discrete Element Method simulations of standing jumps in granular flows down inclines
1 Université Grenoble Alpes, Irstea, UR ETGR, 2 rue de la Papeterie BP76, F-38402 St-Martin-d’Hères, France
2 School of Civil Engineering, The University of Sydney, Sydney NSW 2006, Australia
3 Departement of Civil Environmental and Geomatic Engineering, Faculty of Engineering Science, University College London, Gower Street, London WC1E 6BT, United Kingdom
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Published online: 30 June 2017
This paper describes a numerical set-up which uses Discrete Element Method to produce standing jumps in flows of dry granular materials down a slope in two dimensions. The grain-scale force interactions are modeled by a visco-elastic normal force and an elastic tangential force with a Coulomb threshold. We will show how it is possible to reproduce all the shapes of the jumps observed in a previous laboratory study: diffuse versus steep jumps and compressible versus incompressible jumps. Moreover, we will discuss the additional measurements that can be done thanks to discrete element modelling.
© The Authors, published by EDP Sciences, 2017
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