Tapped granular column dynamics: simulations, experiments and modeling
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 period \(\tau \). 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.
KeywordsGranular column Discrete element simulation Positron emission tracking Continuum model
|Funder Name||Grant Number||Funding Note|
|Directorate for Engineering|