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A new drag model for TFM simulation of gas-solid bubbling fluidized beds with Geldart-B particles
Alternative TitleParticuology
Wang, Yingce1,2; Zou, Zheng1,2; Li, Hongzhong1; Zhu, Qingshan1
2014-08-01
Source PublicationPARTICUOLOGY
ISSN1674-2001
Volume15Issue:S1Pages:151-159
AbstractIn this work, a new drag model for TFM simulation in gas solid bubbling fluidized beds was proposed, and a set of equations was derived to determine the meso-scale structural parameters to calculate the drag characteristics of Geldart-B particles under low gas velocities. In the new model, the meso-scale structure was characterized while accounting for the bubble and meso-scale structure effects on the drag coefficient. The Fluent software, incorporating the new drag model, was used to simulate the fluidization behavior. Experiments were performed in a Plexiglas cylindrical fluidized bed consisting of quartz sand as the solid phase and ambient air as the gas phase. Comparisons based on the solids hold-up inside the fluidized bed at different superficial gas velocities, were made between the 2D Cartesian simulations, and the experimental data, showing that the results of the new drag model reached much better agreement with experimental data than those of the Gidaspow drag model did. (C) 2013 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier BAT. All rights reserved.; In this work, a new drag model for TFM simulation in gas solid bubbling fluidized beds was proposed, and a set of equations was derived to determine the meso-scale structural parameters to calculate the drag characteristics of Geldart-B particles under low gas velocities. In the new model, the meso-scale structure was characterized while accounting for the bubble and meso-scale structure effects on the drag coefficient. The Fluent software, incorporating the new drag model, was used to simulate the fluidization behavior. Experiments were performed in a Plexiglas cylindrical fluidized bed consisting of quartz sand as the solid phase and ambient air as the gas phase. Comparisons based on the solids hold-up inside the fluidized bed at different superficial gas velocities, were made between the 2D Cartesian simulations, and the experimental data, showing that the results of the new drag model reached much better agreement with experimental data than those of the Gidaspow drag model did. (C) 2013 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier BAT. All rights reserved.
KeywordFluidization Bubbling Fluidized Bed Cfd Geldart-b Particles Drag Model
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.partic.2013.07.003
URL查看原文
Indexed BySCI
Language英语
WOS KeywordNUMERICAL-SIMULATION ; KINETIC-THEORY ; GRANULAR FLOW ; REACTORS ; CFD ; HYDRODYNAMICS
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Chemical ; Materials Science, Multidisciplinary
WOS IDWOS:000340329500021
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Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11546
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yingce,Zou, Zheng,Li, Hongzhong,et al. A new drag model for TFM simulation of gas-solid bubbling fluidized beds with Geldart-B particles[J]. PARTICUOLOGY,2014,15(S1):151-159.
APA Wang, Yingce,Zou, Zheng,Li, Hongzhong,&Zhu, Qingshan.(2014).A new drag model for TFM simulation of gas-solid bubbling fluidized beds with Geldart-B particles.PARTICUOLOGY,15(S1),151-159.
MLA Wang, Yingce,et al."A new drag model for TFM simulation of gas-solid bubbling fluidized beds with Geldart-B particles".PARTICUOLOGY 15.S1(2014):151-159.
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