DEM simulation of granular flows on a heap

Shimin Wu; Haiping Zhu; Aibing Yu; Alain de Ryck; Paul Zulli

doi:10.1063/1.3180003

DEM simulation of granular flows on a heap

Shimin Wu, Haiping Zhu, Aibing Yu, Alain de Ryck, Paul Zulli

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

Abstract

Flow of granular material on a heap is numerically investigated using the discrete element method. Experiments are carried out to validate the numerical model. The flow profiles of the surface granular flow and the creep motion of particles in the heap are studied. It is shown that the mean velocity of the surface flow exhibits a linear relationship with depth, while that of the creep motion in the heap decays exponentially with depth and the characteristic length of the decay is on the order of the particle size. The existence of the creep motion can be attributed to the variation of the porosity distribution of the heap. The granular flow on frozen static heap is also investigated to understand the effect of the creep motion on the surface flow.

Original language	English
Title of host publication	Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media
Editors	Masami Nakagawa, Stefan Luding
Place of Publication	Melville NY USA
Publisher	American Institute of Physics
Pages	621 - 624
Number of pages	4
Volume	1142
ISBN (Print)	9780735406827
DOIs	https://doi.org/10.1063/1.3180003
Publication status	Published - 2009
Externally published	Yes
Event	Powders and Grains 2009 - Golden CO USA, Golden, United States of America Duration: 13 Jul 2009 → 17 Jul 2009 Conference number: 6th

Conference

Conference	Powders and Grains 2009
Country/Territory	United States of America
City	Golden
Period	13/07/09 → 17/07/09

Access to Document

10.1063/1.3180003

Cite this

@inproceedings{3950787e6a9049b7ba0259848534cb9e,

title = "DEM simulation of granular flows on a heap",

abstract = "Flow of granular material on a heap is numerically investigated using the discrete element method. Experiments are carried out to validate the numerical model. The flow profiles of the surface granular flow and the creep motion of particles in the heap are studied. It is shown that the mean velocity of the surface flow exhibits a linear relationship with depth, while that of the creep motion in the heap decays exponentially with depth and the characteristic length of the decay is on the order of the particle size. The existence of the creep motion can be attributed to the variation of the porosity distribution of the heap. The granular flow on frozen static heap is also investigated to understand the effect of the creep motion on the surface flow.",

author = "Shimin Wu and Haiping Zhu and Aibing Yu and {de Ryck}, Alain and Paul Zulli",

year = "2009",

doi = "10.1063/1.3180003",

language = "English",

isbn = "9780735406827",

volume = "1142",

pages = "621 -- 624",

editor = "Masami Nakagawa and Stefan Luding",

booktitle = "Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media",

publisher = "American Institute of Physics",

address = "United States of America",

note = "Powders and Grains 2009 ; Conference date: 13-07-2009 Through 17-07-2009",

}

Wu, S, Zhu, H, Yu, A, de Ryck, A & Zulli, P 2009, DEM simulation of granular flows on a heap. in M Nakagawa & S Luding (eds), Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. vol. 1142, American Institute of Physics, Melville NY USA, pp. 621 - 624, Powders and Grains 2009, Golden, Colorado, United States of America, 13/07/09. https://doi.org/10.1063/1.3180003

DEM simulation of granular flows on a heap. / Wu, Shimin; Zhu, Haiping; Yu, Aibing et al.

Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. ed. / Masami Nakagawa; Stefan Luding. Vol. 1142 Melville NY USA : American Institute of Physics, 2009. p. 621 - 624.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

TY - GEN

T1 - DEM simulation of granular flows on a heap

AU - Wu, Shimin

AU - Zhu, Haiping

AU - Yu, Aibing

AU - de Ryck, Alain

AU - Zulli, Paul

N1 - Conference code: 6th

PY - 2009

Y1 - 2009

N2 - Flow of granular material on a heap is numerically investigated using the discrete element method. Experiments are carried out to validate the numerical model. The flow profiles of the surface granular flow and the creep motion of particles in the heap are studied. It is shown that the mean velocity of the surface flow exhibits a linear relationship with depth, while that of the creep motion in the heap decays exponentially with depth and the characteristic length of the decay is on the order of the particle size. The existence of the creep motion can be attributed to the variation of the porosity distribution of the heap. The granular flow on frozen static heap is also investigated to understand the effect of the creep motion on the surface flow.

AB - Flow of granular material on a heap is numerically investigated using the discrete element method. Experiments are carried out to validate the numerical model. The flow profiles of the surface granular flow and the creep motion of particles in the heap are studied. It is shown that the mean velocity of the surface flow exhibits a linear relationship with depth, while that of the creep motion in the heap decays exponentially with depth and the characteristic length of the decay is on the order of the particle size. The existence of the creep motion can be attributed to the variation of the porosity distribution of the heap. The granular flow on frozen static heap is also investigated to understand the effect of the creep motion on the surface flow.

UR - http://goo.gl/Z1qbfo

U2 - 10.1063/1.3180003

DO - 10.1063/1.3180003

M3 - Conference Paper

SN - 9780735406827

VL - 1142

SP - 621

EP - 624

BT - Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media

A2 - Nakagawa, Masami

A2 - Luding, Stefan

PB - American Institute of Physics

CY - Melville NY USA

T2 - Powders and Grains 2009

Y2 - 13 July 2009 through 17 July 2009

ER -

DEM simulation of granular flows on a heap

Abstract

Conference

Access to Document

Other files and links

Cite this