413 citations · 2k across the 45 of their papers we have counts for
5 papers · 1 filter
Cutting and shuffling a hemisphere: non-orthogonal axes
Thomas F. Lynn, Lachlan D. Smith, Julio M. Ottino +2
We examine the dynamics of cutting-and-shuffling a hemispherical shell driven by alternate rotation about two horizontal axes using the framework of piecewise isometry (PWI) theory…
Diffusion, mixing, and segregation in confined granular flows
Alexander M. Fry, Paul B. Umbanhowar, Julio M. Ottino +1
Discrete element method simulations of confined bidisperse granular shear flows elucidate the balance between diffusion and segregation that can lead to either mixed or segregated…
Asymmetric concentration dependence of segregation fluxes in granular flows
Ryan P. Jones, Austin B. Isner, Hongyi Xiao +3
We characterize the local concentration dependence of segregation velocity and segregation flux in both size and density bidisperse gravity-driven free-surface granular flows as a…
Unsteady flows and inhomogeneous packing in damp granular heap flows
Hongyi Xiao, John Hruska, Julio M. Ottino +2
We experimentally study the transition from steady flow to unsteady flow in a quasi-2D granular heap when small amounts of water are added to monodisperse glass spheres. Particles…
Optimized mixing by cutting-and-shuffling
Lachlan D. Smith, Paul B. Umbanhowar, Julio M. Ottino +1
Mixing by cutting-and-shuffling can be understood and predicted using dynamical systems based tools and techniques. In existing studies, mixing is generated by maps that repeat the…