Multi-scale characteristics of chaos behavior in gas-liquid bubble columns
文献类型：期刊论文
| 作者 | Liu, MY; Hu, ZD; Li, JH |
| 刊名 | CHEMICAL ENGINEERING COMMUNICATIONS
 |
| 出版日期 | 2004-08-01 |
| 卷号 | 191期号:8页码:1003-1016 |
| 关键词 | gas-liquid bubble column chaos multi-scale flow regime and regime transition correlation dimension correlation integral |
| ISSN号 | 0098-6445 |
| 其他题名 | Chem. Eng. Commun. |
| 中文摘要 | 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. |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | PRESSURE-FLUCTUATIONS ; FLUIDIZED-BEDS ; FLOW ; DYNAMICS ; REGIMES |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000221854200001 |
| 公开日期 | 2013-11-05 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4965]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Inst Chem Met, Beijing, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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