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Multi-scale characteristics of chaos behavior in gas-liquid bubble columns
Alternative TitleChem. Eng. Commun.
Liu, MY; Hu, ZD; Li, JH
2004-08-01
Source PublicationCHEMICAL ENGINEERING COMMUNICATIONS
ISSN0098-6445
Volume191Issue:8Pages:1003-1016
AbstractThe multi-value phenomenon of correlation dimension appearing in chaos analysis of time series of pressure fluctuation obtained from gas-liquid bubble columns was studied. Its relationship with multi-scale flow behavior and possible application in the identification of flow regime and regime transition in bubble columns were investigated. The results indicated that the multi-value phenomenon of correlation dimension results from the multi-scale behavior existing in the heterogeneous churn flow regime in bubble columns. When a bubble column is in the homogeneous flow regime, only one correlation dimension is found at a specified superficial gas velocity, indicating that single-scale behavior is dominant in the system. When a bubble column is in the heterogeneous churn flow regime, multi- (generally three) correlation dimensions can be obtained, showing the appearance of multi-scale behavior. Therefore, the formulation of an effective flow model depends on an appropriate multi-scale analysis for bubble columns. Flow regime and regime transition can be characterized by the structure and structure variation of the plot of the correlation integral versus radius of the hyper-sphere. On the basis of the above analysis, a complementary potential methodology called correlation integral analysis for the identification of flow regime and regime transition in gas-liquid bubble columns is recommended.; The multi-value phenomenon of correlation dimension appearing in chaos analysis of time series of pressure fluctuation obtained from gas-liquid bubble columns was studied. Its relationship with multi-scale flow behavior and possible application in the identification of flow regime and regime transition in bubble columns were investigated. The results indicated that the multi-value phenomenon of correlation dimension results from the multi-scale behavior existing in the heterogeneous churn flow regime in bubble columns. When a bubble column is in the homogeneous flow regime, only one correlation dimension is found at a specified superficial gas velocity, indicating that single-scale behavior is dominant in the system. When a bubble column is in the heterogeneous churn flow regime, multi- (generally three) correlation dimensions can be obtained, showing the appearance of multi-scale behavior. Therefore, the formulation of an effective flow model depends on an appropriate multi-scale analysis for bubble columns. Flow regime and regime transition can be characterized by the structure and structure variation of the plot of the correlation integral versus radius of the hyper-sphere. On the basis of the above analysis, a complementary potential methodology called correlation integral analysis for the identification of flow regime and regime transition in gas-liquid bubble columns is recommended.
KeywordGas-liquid Bubble Column Chaos Multi-scale Flow Regime And Regime Transition Correlation Dimension Correlation Integral
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1080/00986440490276218
URL查看原文
Indexed BySCI
Language英语
WOS KeywordPRESSURE-FLUCTUATIONS ; FLUIDIZED-BEDS ; FLOW ; DYNAMICS ; REGIMES
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000221854200001
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Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/4965
Collection研究所(批量导入)
Affiliation1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Inst Chem Met, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Liu, MY,Hu, ZD,Li, JH. Multi-scale characteristics of chaos behavior in gas-liquid bubble columns[J]. CHEMICAL ENGINEERING COMMUNICATIONS,2004,191(8):1003-1016.
APA Liu, MY,Hu, ZD,&Li, JH.(2004).Multi-scale characteristics of chaos behavior in gas-liquid bubble columns.CHEMICAL ENGINEERING COMMUNICATIONS,191(8),1003-1016.
MLA Liu, MY,et al."Multi-scale characteristics of chaos behavior in gas-liquid bubble columns".CHEMICAL ENGINEERING COMMUNICATIONS 191.8(2004):1003-1016.
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