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Macro-scale phenomena reproduced in microscopic systems-pseudo-particle modeling of fluidization
Alternative TitleChem. Eng. Sci.
Ge, W; Li, JH
2003-04-01
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume58Issue:8Pages:1565-1585
AbstracteDespite its,wide applications, fluidization is not understood enough to satisfy our technical or academic interests. Cascading simulation approaches on different scales, with small-scale approaches provide constitutional correlations to larger scale approaches, is considered a practical way toward this direction. However, by physically reproducing many macro-scale phenomena in fluid flow and fluidization on micro-scales even below the traditional continuum limit, pseudo-particle modeling (PPM,. Ge and Li (Proceedings of the Fifth International Conference on Circulating Fluidized Bed, Beijing, China, Science Press, Beijing, 1996) has suggested the possibility of a more straightforward and penetrating way. In this paper, traditional approaches are reviewed first and then PPM is discussed in full length and validated further. We demonstrate that it has maintained all necessities on the molecular level for comprehensive flow description, and the reproduced phenomena, such as bubbling, clustering and radial heterogeneity, have reflected the fundamental mechanism of their macro-scale counterparts despite the vast scale difference. With this digital miniature, every detail of the flow can be traced non-intrusively until the lowest level in classic physics and experiment with flexible parameters, which provides a unique tool for, theoretical study and engineering predictions. Therefore, PPM is at least a useful complement, if not substitute, to traditional approaches. (C) 2003 Elsevier Science Ltd. All rights reserved.; eDespite its,wide applications, fluidization is not understood enough to satisfy our technical or academic interests. Cascading simulation approaches on different scales, with small-scale approaches provide constitutional correlations to larger scale approaches, is considered a practical way toward this direction. However, by physically reproducing many macro-scale phenomena in fluid flow and fluidization on micro-scales even below the traditional continuum limit, pseudo-particle modeling (PPM,. Ge and Li (Proceedings of the Fifth International Conference on Circulating Fluidized Bed, Beijing, China, Science Press, Beijing, 1996) has suggested the possibility of a more straightforward and penetrating way. In this paper, traditional approaches are reviewed first and then PPM is discussed in full length and validated further. We demonstrate that it has maintained all necessities on the molecular level for comprehensive flow description, and the reproduced phenomena, such as bubbling, clustering and radial heterogeneity, have reflected the fundamental mechanism of their macro-scale counterparts despite the vast scale difference. With this digital miniature, every detail of the flow can be traced non-intrusively until the lowest level in classic physics and experiment with flexible parameters, which provides a unique tool for, theoretical study and engineering predictions. Therefore, PPM is at least a useful complement, if not substitute, to traditional approaches. (C) 2003 Elsevier Science Ltd. All rights reserved.
KeywordDynamic Simulation Fluidization Multi-scale Particle Method Transport Process Scale-up
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/S0009-2509(02)00673-5
URL查看原文
Indexed BySCI
Language英语
WOS KeywordPLANE POISEUILLE FLOW ; DIRECT SIMULATION ; FLUID-FLOWS ; DYNAMICS ; HYDRODYNAMICS ; SUSPENSIONS ; BED
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000182123600014
Citation statistics
Cited Times:53[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5306
Collection研究所(批量导入)
AffiliationAcad Sinica, Multiphase React Lab, Inst Proc Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Ge, W,Li, JH. Macro-scale phenomena reproduced in microscopic systems-pseudo-particle modeling of fluidization[J]. CHEMICAL ENGINEERING SCIENCE,2003,58(8):1565-1585.
APA Ge, W,&Li, JH.(2003).Macro-scale phenomena reproduced in microscopic systems-pseudo-particle modeling of fluidization.CHEMICAL ENGINEERING SCIENCE,58(8),1565-1585.
MLA Ge, W,et al."Macro-scale phenomena reproduced in microscopic systems-pseudo-particle modeling of fluidization".CHEMICAL ENGINEERING SCIENCE 58.8(2003):1565-1585.
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