The role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles: A discrete particle study

Junwu Wang; M.A. van der Hoef; J.A.M. Kuipers

doi:10.1063/1.3366461

The role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles: A discrete particle study

Junwu Wang
, M.A. van der Hoef
, J.A.M. Kuipers

Faculty of Science and Technology

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

9 Citations (Scopus)

242 Downloads (Pure)

Abstract

Discrete particle simulations are by now well established as an effective tool to study the mechanics of complex gas-solid flows in gas-fluidized beds. In this study, a state-of-the-art discrete particle model is used to explore the role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles. We find that the particle-particle interactions, including inelastic particle-particle collision; inter-particle friction and slightly cohesive forces, only have a negligible effect on the hydrodynamics of bubbling gas-fluidized beds of Geldart A particles. This is due to the fact that only a very small fraction of the energy input is dissipated during the non-ideal particle-particle interaction. We finally show that the selected drag correlation model significantly affects the bed hydrodynamics.

Original language	English
Title of host publication	6th International Symposium on Multiphase Flow, Heat Mass transfer and Energy Conversion
Subtitle of host publication	Xi’an, China, 11-15 July 2009
Place of Publication	Xi'an, China
Publisher	American Institute of Physics
Number of pages	9
ISBN (Print)	9780735407442
DOIs	https://doi.org/10.1063/1.3366461
Publication status	Published - 11 Jul 2010
Event	6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion, ISMF 2009: Proceedings of the International Symposium of Multiphase Flows - Xi'an, China, China Duration: 11 Jul 2009 → 15 Jul 2009 Conference number: 6

Publication series

Name	AIP conference proceedings
Publisher	American Institute of Physics
Volume	1207
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion, ISMF 2009
Abbreviated title	ISMF
Country/Territory	China
City	Xi'an, China
Period	11/07/09 → 15/07/09

Keywords

METIS-263173
IR-67392

Access to Document

10.1063/1.3366461

role_of_particle

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Wang, J., van der Hoef, M. A., & Kuipers, J. A. M. (2010). The role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles: A discrete particle study. In 6th International Symposium on Multiphase Flow, Heat Mass transfer and Energy Conversion: Xi’an, China, 11-15 July 2009 (AIP conference proceedings; Vol. 1207). American Institute of Physics. https://doi.org/10.1063/1.3366461

Wang, Junwu ; van der Hoef, M.A. ; Kuipers, J.A.M. / The role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles : A discrete particle study. 6th International Symposium on Multiphase Flow, Heat Mass transfer and Energy Conversion: Xi’an, China, 11-15 July 2009. Xi'an, China : American Institute of Physics, 2010. (AIP conference proceedings).

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title = "The role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles: A discrete particle study",

abstract = "Discrete particle simulations are by now well established as an effective tool to study the mechanics of complex gas-solid flows in gas-fluidized beds. In this study, a state-of-the-art discrete particle model is used to explore the role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles. We find that the particle-particle interactions, including inelastic particle-particle collision; inter-particle friction and slightly cohesive forces, only have a negligible effect on the hydrodynamics of bubbling gas-fluidized beds of Geldart A particles. This is due to the fact that only a very small fraction of the energy input is dissipated during the non-ideal particle-particle interaction. We finally show that the selected drag correlation model significantly affects the bed hydrodynamics.",

keywords = "METIS-263173, IR-67392",

author = "Junwu Wang and \{van der Hoef\}, M.A. and J.A.M. Kuipers",

note = "Paper No. MN-22 ; 6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion, ISMF 2009 : Proceedings of the International Symposium of Multiphase Flows, ISMF ; Conference date: 11-07-2009 Through 15-07-2009",

year = "2010",

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doi = "10.1063/1.3366461",

language = "English",

isbn = "9780735407442",

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Wang, J, van der Hoef, MA & Kuipers, JAM 2010, The role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles: A discrete particle study. in 6th International Symposium on Multiphase Flow, Heat Mass transfer and Energy Conversion: Xi’an, China, 11-15 July 2009. AIP conference proceedings, vol. 1207, American Institute of Physics, Xi'an, China, 6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion, ISMF 2009, Xi'an, China, China, 11/07/09. https://doi.org/10.1063/1.3366461

The role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles: A discrete particle study. / Wang, Junwu; van der Hoef, M.A.; Kuipers, J.A.M.
6th International Symposium on Multiphase Flow, Heat Mass transfer and Energy Conversion: Xi’an, China, 11-15 July 2009. Xi'an, China: American Institute of Physics, 2010. (AIP conference proceedings; Vol. 1207).

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

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N2 - Discrete particle simulations are by now well established as an effective tool to study the mechanics of complex gas-solid flows in gas-fluidized beds. In this study, a state-of-the-art discrete particle model is used to explore the role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles. We find that the particle-particle interactions, including inelastic particle-particle collision; inter-particle friction and slightly cohesive forces, only have a negligible effect on the hydrodynamics of bubbling gas-fluidized beds of Geldart A particles. This is due to the fact that only a very small fraction of the energy input is dissipated during the non-ideal particle-particle interaction. We finally show that the selected drag correlation model significantly affects the bed hydrodynamics.

AB - Discrete particle simulations are by now well established as an effective tool to study the mechanics of complex gas-solid flows in gas-fluidized beds. In this study, a state-of-the-art discrete particle model is used to explore the role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles. We find that the particle-particle interactions, including inelastic particle-particle collision; inter-particle friction and slightly cohesive forces, only have a negligible effect on the hydrodynamics of bubbling gas-fluidized beds of Geldart A particles. This is due to the fact that only a very small fraction of the energy input is dissipated during the non-ideal particle-particle interaction. We finally show that the selected drag correlation model significantly affects the bed hydrodynamics.

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Wang J, van der Hoef MA, Kuipers JAM. The role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles: A discrete particle study. In 6th International Symposium on Multiphase Flow, Heat Mass transfer and Energy Conversion: Xi’an, China, 11-15 July 2009. Xi'an, China: American Institute of Physics. 2010. (AIP conference proceedings). doi: 10.1063/1.3366461

The role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles: A discrete particle study

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