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Experimental study and numerical simulation of baffled bubbling fluidized beds with Geldart A particles in three dimensions
Alternative TitleChem. Eng. J.
Yang, S.; Li, H. Z.; Zhu, Q. S.
2015
Source PublicationChemical Engineering Journal
Pages338-347
AbstractIn this study, a new method was developed to simulate the flow characteristics of Geldart A particles in the bubbling fluidized beds with perforated plates by the modified structure-based drag model. In this approach, the baffle was considered as a gas distributor and the baffled bubbling fluidized bed was divided into several sections which were treated as a series of freely bubbling fluidized beds. These freely bubbling fluidized beds were simulated by the structure-based drag model. Due to the structure difference between the baffle and the distributor, the empirical correlation of the initial bubble diameter in the structure-based drag model was modified to adapt the simulation of these freely bubbling fluidized beds. By this modification, the bubbling fluidization behavior and the bed expansion in a bubbling fluidized bed with perforated plates can be correctly predicted. The simulation results showed good agreements with the experimental data of the radial and axial solid volume fraction distributions and the axial pressure distribution. The phenomenon that baffles restrained back-mixing of particles was captured in the solid circulation pattern as well. (C) 2014 Elsevier B.V. All rights reserved.
KeywordFluidization Baffles Hydrodynamics Simulation Bubbling Fluidized Beds Gas-solid Flow Cfd Simulation Drag Coefficient 2-fluid Model Segregation Hydrodynamics Reactors Systems Riser
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Indexed BySCI
Language英语
WOS IDWOS:000343952400035
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11871
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
Yang, S.,Li, H. Z.,Zhu, Q. S.. Experimental study and numerical simulation of baffled bubbling fluidized beds with Geldart A particles in three dimensions[J]. Chemical Engineering Journal,2015:338-347.
APA Yang, S.,Li, H. Z.,&Zhu, Q. S..(2015).Experimental study and numerical simulation of baffled bubbling fluidized beds with Geldart A particles in three dimensions.Chemical Engineering Journal,338-347.
MLA Yang, S.,et al."Experimental study and numerical simulation of baffled bubbling fluidized beds with Geldart A particles in three dimensions".Chemical Engineering Journal (2015):338-347.
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