Tapped granular column dynamics: simulations, experiments and modeling

Abstract

This paper communicates the results of a synergistic investigation that initiates our long term research goal of developing a continuum model capable of predicting a variety of granular flows. We consider an ostensibly simple system consisting of a column of inelastic spheres subjected to discrete taps in the form of half sine wave pulses of amplitude a/d and frequency f. A three-pronged approach is used, consisting of discrete element simulations based on linear loading-unloading contacts, experimental validation, and preliminary comparisons with our continuum model in the form of an integro-partial differential equation. Tapped Granular Column Dynamics: Simulations, Experiments and Modeling. Available from: https://www.researchgate.net/publication/274391492_Tapped_Granular_Column_Dynamics_Simulations_Experiments_and_Modeling [accessed Feb 1, 2016]