Impact load of a granular flow against an obstacle based on discrete element method
Force d'impact d'un écoulement granulaire contre un obstacle par modélisation discrète
Résumé
This paper presents a numerical study for evaluating the impact force of dry granular flow against a rigid wall. The granular material was modeled using poly-dispersed clumps where each clump consisted of two overlapping spherical particles accounting for the shape effects of gravel particles. The particles were flowing in an inclined flume where different inclination angles were tested and interaction forces with the wall were recorded at different heights. Compared with the experimental results, the model showed good agreement regarding the peak impact force, the time of the peak force and the final (residual) force at the end of the tests.
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