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Dynamic behaviors of heterogeneous flow structure in gas-solid fluidization
Alternative TitlePowder Technol.
Cui, HP; Li, JH; Kwauk, M; An, HZ; Chen, M; Ma, ZM; Wu, GF
2000-10-05
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume112Issue:1-2Pages:7-23
AbstractA method was established to quantitatively describe nonlinear dynamic behavior of heterogeneous flow structure in gas-solid fluidization by carrying out multiple resolution and time series reconstruction of experimental signals. Optimum sampling frequency was proposed by analyzing the dependence of Kolmogorov entropy of time series on sampling frequencies. Original signals could be resolved with respect first to scale, and then to time and amplitude into a periodic function and three irregular changes (micro-scale fluctuations, and meso-scale irregular amplitude and time fluctuations). Statistical analysis indicated that the three kinds of irregular components are of random characteristics, with a complicated evolution of their probability density distributions with changing operating conditions. A new distribution function, called Compound Weibull distribution with seven parameters, was developed to describe the irregular fluctuations of flow structure, leading to a nonlinear dynamic model for simulating dynamic behaviors of heterogeneous flow structure in gas-solid fluidization, which has been coded into a software package. (C) 2000 Elsevier Science S.A. All rights reserved.; A method was established to quantitatively describe nonlinear dynamic behavior of heterogeneous flow structure in gas-solid fluidization by carrying out multiple resolution and time series reconstruction of experimental signals. Optimum sampling frequency was proposed by analyzing the dependence of Kolmogorov entropy of time series on sampling frequencies. Original signals could be resolved with respect first to scale, and then to time and amplitude into a periodic function and three irregular changes (micro-scale fluctuations, and meso-scale irregular amplitude and time fluctuations). Statistical analysis indicated that the three kinds of irregular components are of random characteristics, with a complicated evolution of their probability density distributions with changing operating conditions. A new distribution function, called Compound Weibull distribution with seven parameters, was developed to describe the irregular fluctuations of flow structure, leading to a nonlinear dynamic model for simulating dynamic behaviors of heterogeneous flow structure in gas-solid fluidization, which has been coded into a software package. (C) 2000 Elsevier Science S.A. All rights reserved.
KeywordFluidization Heterogeneous Flow Structure Dynamic Behavior The Compound Weibull Distribution Simulation
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
URL查看原文
Indexed BySCI
Language英语
WOS KeywordWAVES ; BEDS
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000089464700004
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5891
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Chem Met, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Dept Appl Math, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Cui, HP,Li, JH,Kwauk, M,et al. Dynamic behaviors of heterogeneous flow structure in gas-solid fluidization[J]. POWDER TECHNOLOGY,2000,112(1-2):7-23.
APA Cui, HP.,Li, JH.,Kwauk, M.,An, HZ.,Chen, M.,...&Wu, GF.(2000).Dynamic behaviors of heterogeneous flow structure in gas-solid fluidization.POWDER TECHNOLOGY,112(1-2),7-23.
MLA Cui, HP,et al."Dynamic behaviors of heterogeneous flow structure in gas-solid fluidization".POWDER TECHNOLOGY 112.1-2(2000):7-23.
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