Discrete element modelling of gas fluidization of fine ellipsoidal particles

Jieqing Gan; Zongyan Zhou; Ruiping Zou; Aibing Yu

doi:10.1063/1.4812135

Discrete element modelling of gas fluidization of fine ellipsoidal particles

Jieqing Gan, Zongyan Zhou, Ruiping Zou, Aibing Yu

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

1 Citation (Scopus)

Abstract

Particle properties are important factors affecting gas fluidization. In the present work, the effects of particle size and shape on the fluidization characteristics are studied using the combined approach of computational fluid dynamics for gas phase and discrete element method for particles. It shows that a bed becomes loosely packed when particle size becomes small. The minimum fluidization velocity increases exponentially with the increase of particle size. Higher minimum bubbling velocities are predicted for ellipsoidal particles compared with spherical ones. Chain phenomenon exists in the expanded and fluidized beds for fine prolate particles.

Original language	English
Title of host publication	Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media
Editors	Aibing Yu, Kejun Dong, Runyu Yang, Stefan Luding
Place of Publication	Melville NY USA
Publisher	American Institute of Physics
Pages	1130 - 1133
Number of pages	4
Volume	1542
ISBN (Print)	9780735411661
DOIs	https://doi.org/10.1063/1.4812135
Publication status	Published - 2013
Externally published	Yes
Event	Powders and Grains 2013 - Sydney, Australia Duration: 8 Jul 2013 → 12 Jul 2013 Conference number: 7th http://www.pg2013.unsw.edu.au/ http://www.proceedings.com/21017.html

Conference

Conference	Powders and Grains 2013
Country	Australia
City	Sydney
Period	8/07/13 → 12/07/13
Internet address	http://www.pg2013.unsw.edu.au/ http://www.proceedings.com/21017.html

Access to Document

10.1063/1.4812135

RM sElocation

Cite this

Gan, J., Zhou, Z., Zou, R., & Yu, A. (2013). Discrete element modelling of gas fluidization of fine ellipsoidal particles. In A. Yu, K. Dong, R. Yang, & S. Luding (Eds.), Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media (Vol. 1542, pp. 1130 - 1133). American Institute of Physics. https://doi.org/10.1063/1.4812135

Gan, Jieqing ; Zhou, Zongyan ; Zou, Ruiping ; Yu, Aibing. / Discrete element modelling of gas fluidization of fine ellipsoidal particles. Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. editor / Aibing Yu ; Kejun Dong ; Runyu Yang ; Stefan Luding. Vol. 1542 Melville NY USA : American Institute of Physics, 2013. pp. 1130 - 1133

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abstract = "Particle properties are important factors affecting gas fluidization. In the present work, the effects of particle size and shape on the fluidization characteristics are studied using the combined approach of computational fluid dynamics for gas phase and discrete element method for particles. It shows that a bed becomes loosely packed when particle size becomes small. The minimum fluidization velocity increases exponentially with the increase of particle size. Higher minimum bubbling velocities are predicted for ellipsoidal particles compared with spherical ones. Chain phenomenon exists in the expanded and fluidized beds for fine prolate particles.",

author = "Jieqing Gan and Zongyan Zhou and Ruiping Zou and Aibing Yu",

year = "2013",

doi = "10.1063/1.4812135",

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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 2013 ; Conference date: 08-07-2013 Through 12-07-2013",

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Gan, J , Zhou, Z , Zou, R & Yu, A 2013, Discrete element modelling of gas fluidization of fine ellipsoidal particles. in A Yu, K Dong, R Yang & S Luding (eds), Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. vol. 1542, American Institute of Physics, Melville NY USA, pp. 1130 - 1133, Powders and Grains 2013, Sydney, Australia, 8/07/13. https://doi.org/10.1063/1.4812135

Discrete element modelling of gas fluidization of fine ellipsoidal particles. / Gan, Jieqing ; Zhou, Zongyan ; Zou, Ruiping ; Yu, Aibing.

Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. ed. / Aibing Yu; Kejun Dong; Runyu Yang; Stefan Luding. Vol. 1542 Melville NY USA : American Institute of Physics, 2013. p. 1130 - 1133.

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

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AB - Particle properties are important factors affecting gas fluidization. In the present work, the effects of particle size and shape on the fluidization characteristics are studied using the combined approach of computational fluid dynamics for gas phase and discrete element method for particles. It shows that a bed becomes loosely packed when particle size becomes small. The minimum fluidization velocity increases exponentially with the increase of particle size. Higher minimum bubbling velocities are predicted for ellipsoidal particles compared with spherical ones. Chain phenomenon exists in the expanded and fluidized beds for fine prolate particles.

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Gan J , Zhou Z , Zou R , Yu A. Discrete element modelling of gas fluidization of fine ellipsoidal particles. In Yu A, Dong K, Yang R, Luding S, editors, Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. Vol. 1542. Melville NY USA: American Institute of Physics. 2013. p. 1130 - 1133 https://doi.org/10.1063/1.4812135