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Parametric effects of superficial gas velocity and cluster internal voidage on the penetrating flow through clusters
Alternative TitlePowder Technol.
Meng, Fanxiao1,2; Liu, Xinhua1
2012-07-01
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume224Issue:224Pages:404-409
AbstractGas-solid interaction does exist both outside and inside particle clusters in gas-solid two-phase flow, but the penetrating flow through clusters was generally neglected in most mathematical models of clusters. As regards to what extent the penetrating flow exists in gas-solid flow and how the penetrating flow affects gas-solid interaction, there are still no universally accepted viewpoint and quantitative characterization until now. By utilizing both CFD (Computational Fluid Dynamics) simulations and PIV (Particle Image Velocimetry) measurements, this article quantitatively investigates the gas and dilute gas-solid penetrating flows through different pseudo two-dimensional clusters in a two-dimensional gas-solid fluidized bed. The solid penetrating flow through clusters seldom occurs, but the gas penetrating flow increases exponentially with increasing internal voidage of clusters, which is however affected little by superficial gas velocity under the tested operating conditions. These results imply that the effect of the gas penetrating flow through clusters must be taken into consideration when investigating particle clustering behavior in gas-solid two-phase flow. (C) 2012 Elsevier B.V. All rights reserved.; Gas-solid interaction does exist both outside and inside particle clusters in gas-solid two-phase flow, but the penetrating flow through clusters was generally neglected in most mathematical models of clusters. As regards to what extent the penetrating flow exists in gas-solid flow and how the penetrating flow affects gas-solid interaction, there are still no universally accepted viewpoint and quantitative characterization until now. By utilizing both CFD (Computational Fluid Dynamics) simulations and PIV (Particle Image Velocimetry) measurements, this article quantitatively investigates the gas and dilute gas-solid penetrating flows through different pseudo two-dimensional clusters in a two-dimensional gas-solid fluidized bed. The solid penetrating flow through clusters seldom occurs, but the gas penetrating flow increases exponentially with increasing internal voidage of clusters, which is however affected little by superficial gas velocity under the tested operating conditions. These results imply that the effect of the gas penetrating flow through clusters must be taken into consideration when investigating particle clustering behavior in gas-solid two-phase flow. (C) 2012 Elsevier B.V. All rights reserved.
KeywordParticle Cluster Penetrating Flow Cfd Simulation Piv Measurement
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.powtec.2012.03.037
URL查看原文
Indexed BySCI
Language英语
WOS KeywordCIRCULATING FLUIDIZED-BED ; SOLID FLOW
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000304792000053
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6423
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Xi An Jiao Tong Univ, Key Lab Multiphase Flow Power Engn, Xian 710049, Shanxi, Peoples R China
Recommended Citation
GB/T 7714
Meng, Fanxiao,Liu, Xinhua. Parametric effects of superficial gas velocity and cluster internal voidage on the penetrating flow through clusters[J]. POWDER TECHNOLOGY,2012,224(224):404-409.
APA Meng, Fanxiao,&Liu, Xinhua.(2012).Parametric effects of superficial gas velocity and cluster internal voidage on the penetrating flow through clusters.POWDER TECHNOLOGY,224(224),404-409.
MLA Meng, Fanxiao,et al."Parametric effects of superficial gas velocity and cluster internal voidage on the penetrating flow through clusters".POWDER TECHNOLOGY 224.224(2012):404-409.
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