Dynamics of rotating spirals in agitated wet granular matter

Journal Article

Pattern formation of a thin layer of vertically agitated wet granular matter is investigated experimentally. Due to the strong cohesion arising from the capillary bridges formed between adjacent particles, agitated wet granular matter exhibits a different scenario compared with cohesionless dry particles. Rotating spirals with three arms, which correspond to the kinks between regions with different colliding phases with the vibrating plate, have been found to be the dominating pattern [1]. From both top view snapshots and laser profilometry methods, the rotation frequency of the spiral arms is characterized with image processing procedures. Both methods reveal that there exists a finite rotation frequency νr at a threshold vibration acceleration, above which νr increases linearly with the peak vibration acceleration with a slope strongly dependent on the vibration frequency. © 2013 AIP Publishing LLC.

Full Text

Duke Authors

Cited Authors

  • Huang, K; Butzhammer, L; Rehberg, I

Published Date

  • August 1, 2013

Published In

Volume / Issue

  • 1542 /

Start / End Page

  • 702 - 705

Electronic International Standard Serial Number (EISSN)

  • 1551-7616

International Standard Serial Number (ISSN)

  • 0094-243X

Digital Object Identifier (DOI)

  • 10.1063/1.4812028

Citation Source

  • Scopus