118 citations · 384 across the 8 of their papers we have counts for
8 papers
Jamming and growth of dynamical heterogeneities versus depth for granular heap flow
H. Katsuragi, A. R. Abate, D. J. Durian
We report on grain dynamics versus depth for steady-state gravity-driven flow of grains along a heap formed between two parallel sidewalls. Near the surface the flow is steady and…
Effective temperatures and activated dynamics for a two-dimensional air-driven granular system on two approaches to jamming
A. R. Abate, D. J. Durian
We present experiments on several distinct effective temperatures in a granular system at a sequence of increasing packing densities and at a sequence of decreasing driving rates.…
Avalanche statistics and time-resolved grain dynamics for a driven heap
A. R. Abate, H. Katsuragi, D. J. Durian
We probe the dynamics of intermittent avalanches caused by steady addition of grains to a quasi-two dimensional heap. To characterize the time-dependent average avalanche flow spee…
Topological persistence and dynamical heterogeneities near jamming
A. R. Abate, D. J. Durian
We introduce topological methods for quantifying spatially heterogeneous dynamics, and use these tools to analyze particle-tracking data for a quasi-two-dimensional granular system…
Approach to jamming in an air-fluidized granular bed
A. R. Abate, D. J. Durian
Quasi-2D bidisperse amorphous systems of steel beads are fluidized by a uniform upflow of air, so that the beads roll on a horizontal plane. The short-time ballistic motion of the…
The partition of energy for air-fluidized grains
A. R. Abate, D. J. Durian
The dynamics of one and two identical spheres rolling in a nearly-levitating upflow of air obey the Langevin Equation and the Fluctuation-Dissipation Relation [Ojha et al. Nature 4…