DEM study of granular flow around blocks attached to inclined walls

Joel Samsu, Zongyan Zhou, David Pinson, Sheng Chew

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Damage due to intense particle-wall contact in industrial applications can cause severe problems in industries such as mineral processing, mining and metallurgy. Studying the flow dynamics and forces on containing walls can provide valuable feedback for equipment design and optimising operations to prolong the equipment lifetime. Therefore, solids flow-wall interaction phenomena, i.e. induced wall stress and particle flow patterns should be well understood. In this work, discrete element method (DEM) is used to study steady state granular flow in a gravity-fed hopper like geometry with blocks attached to an inclined wall. The effects of different geometries, e.g. different wall angles and spacing between blocks are studied by means of a 3D DEM slot model with periodic boundary conditions. The findings of this work include (i) flow analysis in terms of flow patterns and particle velocities, (ii) force distributions within the model geometry, and (iii) wall stress vs. model height diagrams. The model enables easy transfer of the key findings to other industrial applications handling granular materials.

Original languageEnglish
Title of host publicationEPJ Web of Conferences
Subtitle of host publicationPowders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media
EditorsFarhang Radjai, Saeid Nezamabadi, Stefan Luding, Jean-Yves Delenne
Place of PublicationLes Ulis France
PublisherEDP Sciences
Number of pages4
Volume140
DOIs
Publication statusPublished - 30 Jun 2017
EventPowders and Grains 2017 - Montpellier, France
Duration: 3 Jul 20177 Jul 2017
Conference number: 8th
http://pg2017.org/en/

Publication series

NameEPJ Web of Conferences
PublisherEDP Sciences
Volume140
ISSN (Electronic)2100-014X

Conference

ConferencePowders and Grains 2017
CountryFrance
CityMontpellier
Period3/07/177/07/17
Internet address

Cite this

Samsu, J., Zhou, Z., Pinson, D., & Chew, S. (2017). DEM study of granular flow around blocks attached to inclined walls. In F. Radjai, S. Nezamabadi, S. Luding, & J-Y. Delenne (Eds.), EPJ Web of Conferences: Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media (Vol. 140). [03075] (EPJ Web of Conferences ; Vol. 140). Les Ulis France: EDP Sciences. EPJ Web of Conferences https://doi.org/10.1051/epjconf/201714003075
Samsu, Joel ; Zhou, Zongyan ; Pinson, David ; Chew, Sheng. / DEM study of granular flow around blocks attached to inclined walls. EPJ Web of Conferences: Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media. editor / Farhang Radjai ; Saeid Nezamabadi ; Stefan Luding ; Jean-Yves Delenne. Vol. 140 Les Ulis France : EDP Sciences, 2017. (EPJ Web of Conferences ). (EPJ Web of Conferences).
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abstract = "Damage due to intense particle-wall contact in industrial applications can cause severe problems in industries such as mineral processing, mining and metallurgy. Studying the flow dynamics and forces on containing walls can provide valuable feedback for equipment design and optimising operations to prolong the equipment lifetime. Therefore, solids flow-wall interaction phenomena, i.e. induced wall stress and particle flow patterns should be well understood. In this work, discrete element method (DEM) is used to study steady state granular flow in a gravity-fed hopper like geometry with blocks attached to an inclined wall. The effects of different geometries, e.g. different wall angles and spacing between blocks are studied by means of a 3D DEM slot model with periodic boundary conditions. The findings of this work include (i) flow analysis in terms of flow patterns and particle velocities, (ii) force distributions within the model geometry, and (iii) wall stress vs. model height diagrams. The model enables easy transfer of the key findings to other industrial applications handling granular materials.",
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Samsu, J, Zhou, Z, Pinson, D & Chew, S 2017, DEM study of granular flow around blocks attached to inclined walls. in F Radjai, S Nezamabadi, S Luding & J-Y Delenne (eds), EPJ Web of Conferences: Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media. vol. 140, 03075, EPJ Web of Conferences , vol. 140, EDP Sciences, Les Ulis France, EPJ Web of Conferences, Powders and Grains 2017, Montpellier, France, 3/07/17. https://doi.org/10.1051/epjconf/201714003075

DEM study of granular flow around blocks attached to inclined walls. / Samsu, Joel; Zhou, Zongyan; Pinson, David; Chew, Sheng.

EPJ Web of Conferences: Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media. ed. / Farhang Radjai; Saeid Nezamabadi; Stefan Luding; Jean-Yves Delenne. Vol. 140 Les Ulis France : EDP Sciences, 2017. 03075 (EPJ Web of Conferences ; Vol. 140).

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

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Samsu J, Zhou Z, Pinson D, Chew S. DEM study of granular flow around blocks attached to inclined walls. In Radjai F, Nezamabadi S, Luding S, Delenne J-Y, editors, EPJ Web of Conferences: Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media. Vol. 140. Les Ulis France: EDP Sciences. 2017. 03075. (EPJ Web of Conferences ). (EPJ Web of Conferences). https://doi.org/10.1051/epjconf/201714003075