Nonuniformities in the angle of repose and packing fraction of large heaps of particles

Topic N, Gallas J, Pöschel T (2012)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2012

Journal

Physical Review Letters American Physical Society

Publisher: American Physical Society

Book Volume: 109

Article Number: 128001

Journal Issue: 12

DOI: 10.1103/PhysRevLett.109.128001

Abstract

We report a numerical investigation of the structural properties of very large three-dimensional heaps of particles produced by ballistic deposition from extended circular dropping areas. Very large heaps are found to contain three new geometrical characteristics not observed before: they may have two external angles of repose, an internal angle of repose, and four distinct packing fraction (density) regions. Such characteristics are shown to be directly correlated with the size of the dropping zone. In addition, we also describe how noise during the deposition affects the final heap structure. © 2012 American Physical Society.

Authors with CRIS profile

Nikola Topic Lehrstuhl für Multiscale Simulation of Particulate Systems (MSS) Jason Gallas Lehrstuhl für Multiscale Simulation of Particulate Systems (MSS) Thorsten Pöschel Lehrstuhl für Multiscale Simulation of Particulate Systems (MSS)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials (EAM)

How to cite

APA:

Topic, N., Gallas, J., & Pöschel, T. (2012). Nonuniformities in the angle of repose and packing fraction of large heaps of particles. Physical Review Letters, 109(12). https://doi.org/10.1103/PhysRevLett.109.128001

MLA:

Topic, Nikola, Jason Gallas, and Thorsten Pöschel. "Nonuniformities in the angle of repose and packing fraction of large heaps of particles." Physical Review Letters 109.12 (2012).

BibTeX: Download