| Autor: |
Satyanu Bhadra, Shankar Ghosh, Shamik Gupta |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Physical Review Research, Vol 3, Iss 4, p 043179 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2643-1564 |
| DOI: |
10.1103/PhysRevResearch.3.043179 |
| Popis: |
We investigate the phenomenon of producing vibration-induced rotational motion in a cylinder filled with achiral rods and being vibrated by an external drive. The arrangement of the rods develops chirality as a result of the interaction of gravity and steric hindrance, which is responsible for the induced motion. A two-rod arrangement is sufficient to generate a persistent motion. The average angular velocity 〈ω〉 of the rods at long times varies nonmonotonically with the packing fraction ϕ for a given drive strength Γ. Though the precise nature of the variation of 〈ω〉 with ϕ depends on the details of the interaction between individual rods, its general characteristics hold true for rods of various materials and geometries. A stochastic model based on the asymmetric simple exclusion process helps in understanding the key features of our experiments. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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