Abstract
Numerical simulations and laboratory experiments are conducted for thin layers of particles in a vertically oscillated container as a function of the frequency , amplitude , and depth . The same standing wave patterns (stripes, squares, or hexagons oscillating at or ) and wavelengths are obtained in the simulations and experiments for a wide range of and two layer depths. Two model parameters are determined by fits at just two points . Simulation results lead to heuristic arguments for the onset of patterns and the crossover from squares to stripes.
- Received 13 June 1997
DOI:https://doi.org/10.1103/PhysRevLett.80.57
©1998 American Physical Society