Contact analysis of different flow regimes in gas fluidization

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

Abstract

The particle contacts in different particle-fluid flow regimes, such as fixed, expanded and fluidized beds, in gas fluidization are investigated for group A and B powders by means of a combined approach of computational fluid dynamics anddiscrete element method. To establish the connection between macroscopic and microscopic descriptions of complex particle-fluid flows, focus is given to the correlation between coordination number (CN) and porosity (e). It is found that the CN-e relationship for group A powders has a transitional point between the expanded and fluidized bed flow regimes at a bulk scale, unlike group B powders. A new phase diagram is established in terms of CN-e relationship that has two branches representing expanded and fluidized (bed) states.
Original languageEnglish
Title of host publicationPowders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media
EditorsAibing Yu, Kejun Dong, Runyu Yang, Stefan Luding
Place of PublicationMelville NY USA
PublisherAmerican Institute of Physics
Pages1106 - 1109
Number of pages4
Volume1542
ISBN (Print)9780735411661
DOIs
Publication statusPublished - 2013
Externally publishedYes
EventPowders and Grains 2013 - Sydney, Australia
Duration: 8 Jul 201312 Jul 2013
Conference number: 7th
http://www.pg2013.unsw.edu.au/
http://www.proceedings.com/21017.html

Conference

ConferencePowders and Grains 2013
CountryAustralia
CitySydney
Period8/07/1312/07/13
Internet address

Cite this

Hou, Q., Zhou, Z., & Yu, A. (2013). Contact analysis of different flow regimes in gas fluidization. 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. 1106 - 1109). Melville NY USA: American Institute of Physics. https://doi.org/10.1063/1.4812129
Hou, Qinfu ; Zhou, Zongyan ; Yu, Aibing. / Contact analysis of different flow regimes in gas fluidization. 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. 1106 - 1109
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title = "Contact analysis of different flow regimes in gas fluidization",
abstract = "The particle contacts in different particle-fluid flow regimes, such as fixed, expanded and fluidized beds, in gas fluidization are investigated for group A and B powders by means of a combined approach of computational fluid dynamics anddiscrete element method. To establish the connection between macroscopic and microscopic descriptions of complex particle-fluid flows, focus is given to the correlation between coordination number (CN) and porosity (e). It is found that the CN-e relationship for group A powders has a transitional point between the expanded and fluidized bed flow regimes at a bulk scale, unlike group B powders. A new phase diagram is established in terms of CN-e relationship that has two branches representing expanded and fluidized (bed) states.",
author = "Qinfu Hou and Zongyan Zhou and Aibing Yu",
year = "2013",
doi = "10.1063/1.4812129",
language = "English",
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volume = "1542",
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Hou, Q, Zhou, Z & Yu, A 2013, Contact analysis of different flow regimes in gas fluidization. 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. 1106 - 1109, Powders and Grains 2013, Sydney, Australia, 8/07/13. https://doi.org/10.1063/1.4812129

Contact analysis of different flow regimes in gas fluidization. / Hou, Qinfu; Zhou, Zongyan; 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. 1106 - 1109.

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

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N2 - The particle contacts in different particle-fluid flow regimes, such as fixed, expanded and fluidized beds, in gas fluidization are investigated for group A and B powders by means of a combined approach of computational fluid dynamics anddiscrete element method. To establish the connection between macroscopic and microscopic descriptions of complex particle-fluid flows, focus is given to the correlation between coordination number (CN) and porosity (e). It is found that the CN-e relationship for group A powders has a transitional point between the expanded and fluidized bed flow regimes at a bulk scale, unlike group B powders. A new phase diagram is established in terms of CN-e relationship that has two branches representing expanded and fluidized (bed) states.

AB - The particle contacts in different particle-fluid flow regimes, such as fixed, expanded and fluidized beds, in gas fluidization are investigated for group A and B powders by means of a combined approach of computational fluid dynamics anddiscrete element method. To establish the connection between macroscopic and microscopic descriptions of complex particle-fluid flows, focus is given to the correlation between coordination number (CN) and porosity (e). It is found that the CN-e relationship for group A powders has a transitional point between the expanded and fluidized bed flow regimes at a bulk scale, unlike group B powders. A new phase diagram is established in terms of CN-e relationship that has two branches representing expanded and fluidized (bed) states.

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Hou Q, Zhou Z, Yu A. Contact analysis of different flow regimes in gas fluidization. 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. 1106 - 1109 https://doi.org/10.1063/1.4812129