Modeling and Simulation of Liquid Pulsed Particulate Fluidized Beds

doi:10.1016/j.powtec.2005.05.002

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	Modeling and Simulation of Liquid Pulsed Particulate Fluidized Beds
	Jin GD(晋国栋); Liu DY(刘大有); Liu, DY (reprint author), Chinese Acad Sci, Inst Mech, DES, Beijing 100080, Peoples R China.
发表期刊	Powder Technology
	2005
卷号	154 期号:2-3 页码:138-155
ISSN	0032-5910
摘要	Pulsed fluidization is of considerable interest in process engineering for improving fluidization quality. Quantitative understanding of the pulsed two-phase flow behaviors is very important for proper design and optimum operation of such contactors. The; Pulsed fluidization is of considerable interest in process engineering for improving fluidization quality. Quantitative understanding of the pulsed two-phase flow behaviors is very important for proper design and optimum operation of such contactors. The main objective of this study is to understand the mathematical models for liquid pulsed particulate fluidization and its dynamic processes. The state of the arts of the Two-Fluid Model (TFM) and its constitutive relationships are discussed and then, the Local Equilibrium Model (LEM), a simplified version of TFM, is developed and solved for liquid pulsed fluidization. LEM is proposed to describe the liquid pulsed fluidization with acceptable engineering accuracy as compared with the experimental data, and its shortcomings are also discussed at length by analyzing the relaxation processes of the two-phase flow due to a jump change of fluidizing velocity and the structure of concentration discontinuity which forms in the bed collapse process. The main shortcoming of LEM is that some detailed information in the flow fields is lost. However, errors only exist in a time interval of tens of milliseconds (several times of particle relaxation time) and a spatial span of several millimeters (several times of particle diameter).
学科领域	力学
DOI	10.1016/j.powtec.2005.05.002
收录类别	SCI
语种	英语
WOS记录号	WOS:000230969300010
关键词[WOS]	2-PHASE FLOW THEORY ; NUMERICAL-SIMULATION ; GAS ; DYNAMICS ; BUBBLES ; INSTABILITY ; EQUATIONS ; WAVES
WOS研究方向	Engineering
WOS类目	Engineering, Chemical
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/17186
专题	力学所知识产出(1956-2008)
通讯作者	Liu, DY (reprint author), Chinese Acad Sci, Inst Mech, DES, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Jin GD,Liu DY,Liu, DY . Modeling and Simulation of Liquid Pulsed Particulate Fluidized Beds[J]. Powder Technology,2005,154,2-3,:138-155.
APA	晋国栋,刘大有,&Liu, DY .(2005).Modeling and Simulation of Liquid Pulsed Particulate Fluidized Beds.Powder Technology,154(2-3),138-155.
MLA	晋国栋,et al."Modeling and Simulation of Liquid Pulsed Particulate Fluidized Beds".Powder Technology 154.2-3(2005):138-155.

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