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A multi-scale framework for CFD modelling of multi-phase complex systems based on the EMMS approach
Alternative TitleProg. Comput. Fluid Dyn.
Yang, Ning
2012
Source PublicationPROGRESS IN COMPUTATIONAL FLUID DYNAMICS
ISSN1468-4349
Volume12Issue:2-3Pages:220-229
AbstractThe averaged conservative equations in CFD modeling are inadequate to achieve a complete description of the multi-scale structures in multiphase complex systems. By considering the relationship between meso-scale structures and meso-scale energy consumption, stability conditions mathematically expressed as a mutually constrained extremum are proposed in the Energy-Minimization Multi-Scale (EMMS) approach and indispensable to reflect the compromise of different dominant mechanisms for various multiphase systems. The approach is first applied to global systems to predict and physically interpret the macro-scale structure evolution, i.e., regime transition. Then when applied to computational cells, it corrects interphase momentum transfer and greatly improves the accuracy of coarse-grid CFD simulation.; The averaged conservative equations in CFD modeling are inadequate to achieve a complete description of the multi-scale structures in multiphase complex systems. By considering the relationship between meso-scale structures and meso-scale energy consumption, stability conditions mathematically expressed as a mutually constrained extremum are proposed in the Energy-Minimization Multi-Scale (EMMS) approach and indispensable to reflect the compromise of different dominant mechanisms for various multiphase systems. The approach is first applied to global systems to predict and physically interpret the macro-scale structure evolution, i.e., regime transition. Then when applied to computational cells, it corrects interphase momentum transfer and greatly improves the accuracy of coarse-grid CFD simulation.
KeywordMultiscale Cfd Fluidized Beds Bubble Column
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
URL查看原文
Indexed BySCI
Language英语
WOS KeywordFLOW-REGIME TRANSITIONS ; FLUIDIZED-BED RISER ; GAS-SOLID FLOW ; BUBBLE-COLUMNS ; STABILITY CONDITION ; SIMULATION ; TURBULENCE ; PARTICLES
WOS Research AreaThermodynamics ; Mechanics
WOS SubjectThermodynamics ; Mechanics
WOS IDWOS:000305779300016
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6402
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yang, Ning. A multi-scale framework for CFD modelling of multi-phase complex systems based on the EMMS approach[J]. PROGRESS IN COMPUTATIONAL FLUID DYNAMICS,2012,12(2-3):220-229.
APA Yang, Ning.(2012).A multi-scale framework for CFD modelling of multi-phase complex systems based on the EMMS approach.PROGRESS IN COMPUTATIONAL FLUID DYNAMICS,12(2-3),220-229.
MLA Yang, Ning."A multi-scale framework for CFD modelling of multi-phase complex systems based on the EMMS approach".PROGRESS IN COMPUTATIONAL FLUID DYNAMICS 12.2-3(2012):220-229.
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