2003/12/16 by A. J. Bae, Albert Bae, Welles A. M. Morgado +4 · 11 citations
Computer Science · Engineering · Physics and Astronomy · #Acoustics #Classical mechanics #Current (fluid) #Engineering #Geology #Granular flow and fluidized beds #Granular material #Materials science #Mechanics #Nonlinear Dynamics and Pattern Formation #Particle (ecology) #Physics #Ratchet #Sawtooth wave #Subharmonic #Surface finish #Thermodynamics #Vibration #Work (physics) #cond-mat.soft #stochastic dynamics and bifurcation
paper · pdf · doi:10.1016/j.physa.2004.04.055
published in Physica A Statistical Mechanics and its Applications 342(1-2), 22-28 (Elsevier BV) · 7 pages, 3 figures, submitted to Physica A
arxiv created 2003/12/16 · openalex publication_date 2004/05/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A simple model for a granular ratchet corresponding to a single grain bouncing off a vertically vibrating sawtooth-like base is studied. Depending on the vibration strength, the sawtooth roughness and the restitution coefficient, horizontal transport in both the preferred and unfavoured directions is observed. A phase diagram indicating the regions in parameter space where each of the three possible regimes (no current, normal current, and current reversal) occurs is presented.