Dynamics of rotating spirals in agitated wet granular matter

Huang K, Butzhammer L, Rehberg I (2013)

Publication Language: English

Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Publication year: 2013

Book Volume: 1542

Pages Range: 702-705

Conference Proceedings Title: AIP Conference Proceedings 1542

Event location: Sydney, NSW AU

ISBN: 9780735411661

DOI: 10.1063/1.4812028

Abstract

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.

Authors with CRIS profile

Lorenz Butzhammer

Involved external institutions

Universität Bayreuth DE Germany (DE)

How to cite

APA:

Huang, K., Butzhammer, L., & Rehberg, I. (2013). Dynamics of rotating spirals in agitated wet granular matter. In AIP Conference Proceedings 1542 (pp. 702-705). Sydney, NSW, AU.

MLA:

Huang, Kai, Lorenz Butzhammer, and Ingo Rehberg. "Dynamics of rotating spirals in agitated wet granular matter." Proceedings of the 7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013, Sydney, NSW 2013. 702-705.

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