Flux through a hole from a shaken granular medium.

摘要: We have measured the flux of grains from a hole in bottom shaken container grains. find that peak velocity vibration, v max, controls flux, i.e., is nearly independent frequency and acceleration amplitude for given value max. The decreases with increasing then becomes almost constant largest values data at low can be quantitatively described by simple model, but crossover to larger suggests regime which granular density near energy input system.