Dynamics of spiral patterns in vertically vibrated thin granular layer system

Yonggun Jun, Kipom Kim, Hyuk Kyu Pak

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Formation dynamics of transient spiral and target patterns are studied for vertically oscillated thin granular layer systems. When the dimensionless acceleration amplitude is changed from 2.5 of a flat pattern state of 3.0 of a steady stripe pattern state by linearly ramping the oscillation amplitude in time at a constant oscillation frequency, two different routes to the stripe pattern are observed depending on the ramping time. For small ramping time, spiral or target patterns are formed as an intermediate state before the stripe pattern. For large ramping time, however, stripe patterns are formed without the transient spiral or target pattern. Furthermore, we study the short time dynamics of spiral and target patterns.

Original languageEnglish
Pages (from-to)93-98
Number of pages6
JournalPhysica A: Statistical Mechanics and its Applications
Issue number1
StatePublished - 15 Jun 2000
Event5th Taiwan International Symposium on Statistical Physics (StatPhys-Taiwan-1999) - Taipei, Taiwan
Duration: 9 Aug 199912 Aug 1999


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