Experimental study and numerical simulation of baffled bubbling fluidized beds with Geldart A particles in three dimensions

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	Experimental study and numerical simulation of baffled bubbling fluidized beds with Geldart A particles in three dimensions
	Yang, S. ; Li, H. Z. ; Zhu, Q. S.
刊名	Chemical Engineering Journal
	2015
页码	338-347
关键词	Fluidization Baffles Hydrodynamics Simulation Bubbling fluidized beds GAS-SOLID FLOW CFD SIMULATION DRAG COEFFICIENT 2-FLUID MODEL SEGREGATION HYDRODYNAMICS REACTORS SYSTEMS RISER
其他题名	Chem. Eng. J.
中文摘要	In 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.
收录类别	SCI
原文出处	://WOS:000343952400035
语种	英语
WOS记录号	WOS:000343952400035
公开日期	2015-04-01
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/11871]
专题	过程工程研究所_研究所（批量导入）
推荐引用方式 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.