A new effect of granular dynamics in a bounded domain is reported. Oscillations arise when the system evolves from a given (non-equilibrium) initial state. The oscillations obtained are of importance for vibrated granular systems since they reveal some kind of fundamental frequencies and they lead to resonant frequencies under vibration.
['Nadejda B. Loguinova', 'Yp Vlasov']
OSCILLATIONS IN GRANULAR DYNAMICS