Formation and transport of a sand heap in an inclined and vertically vibrated container.
Journal Article (Journal Article)
We investigate experimentally the formation and the transportation of a heap formed by granular materials in an inclined and vertically vibrated container. We observe how the transport velocity of heap up the container is related to the driving acceleration, the driving frequency, and the inclination of the container. An empirical law which governs the transport velocity of the heap is presented. An analogous experiment was performed with a heap-shaped Plexiglas block. We propose that the compressive force resulted from pressure gradient in ambient gas plays a crucial role in enhancing and maintaining a heap, and the ratchet effect causes the movement of the heap.
Full Text
Duke Authors
Cited Authors
- Miao, G; Huang, K; Yun, Y; Zhang, P; Chen, W; Wei, R
Published Date
- August 15, 2006
Published In
Volume / Issue
- 74 / 2 Pt 1
Start / End Page
- 021304 -
PubMed ID
- 17025416
Electronic International Standard Serial Number (EISSN)
- 1550-2376
International Standard Serial Number (ISSN)
- 1539-3755
Digital Object Identifier (DOI)
- 10.1103/physreve.74.021304
Language
- eng