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Toward a Mesoscale-Structure-Based Kinetic Theory for Heterogeneous Gas-Solid Flow: Particle Velocity Distribution Function
Wang, Junwu1; Zhao, Bidan1,2; Li, Jinghai1
2016-08-01
Source PublicationAICHE JOURNAL
ISSN0001-1541
Volume62Issue:8Pages:2649-2657
Abstract

Mesoscience has recently been proposed as a possible general concept for describing complex systems far from equilibrium, however, concrete formulations are needed, and particularly, a statistical mechanics foundation of mesoscience remains to be explored. To this end, the mathematical theory of stochastic geometry is combined with the energy minimization multi-scale (EMMS) principle under the concept of mesoscience to propose a statistical mechanics framework. An EMMS-based particle velocity distribution function is then derived as an example to show how the proposed framework works, and more importantly, as a first key step toward a generalized kinetic theory for heterogeneous gas-solid flow. It was shown that the resultant EMMS-based distribution is bimodal, instead of the widely-used Maxwellian distribution, but it reduces to the Maxwellian distribution when the gas-solid system is homogeneous. The EMMS-based distribution is finally validated by comparing its prediction of the variance of solid concentration fluctuation and granular temperature with experimental data available in literature. (C) 2016 American Institute of Chemical Engineers

KeywordFluidization Kinetic Theory Granular Flow Mesoscale Structure Particle Velocity Distribution Mesoscience
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1002/aic.15244
Indexed BySCI
Language英语
WOS KeywordCIRCULATING FLUIDIZED-BED ; FILTERED 2-FLUID MODELS ; NEAR-WALL REGION ; GRANULAR TEMPERATURE ; EULERIAN SIMULATION ; FCC PARTICLES ; SHOCK WAVE ; CFB RISERS ; DRAG MODEL ; STRESSES
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(91334106 ; Chinese Academy of Sciences(XDA07080200) ; 21422608)
WOS IDWOS:000382986000006
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21314
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Junwu,Zhao, Bidan,Li, Jinghai. Toward a Mesoscale-Structure-Based Kinetic Theory for Heterogeneous Gas-Solid Flow: Particle Velocity Distribution Function[J]. AICHE JOURNAL,2016,62(8):2649-2657.
APA Wang, Junwu,Zhao, Bidan,&Li, Jinghai.(2016).Toward a Mesoscale-Structure-Based Kinetic Theory for Heterogeneous Gas-Solid Flow: Particle Velocity Distribution Function.AICHE JOURNAL,62(8),2649-2657.
MLA Wang, Junwu,et al."Toward a Mesoscale-Structure-Based Kinetic Theory for Heterogeneous Gas-Solid Flow: Particle Velocity Distribution Function".AICHE JOURNAL 62.8(2016):2649-2657.
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