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Unification of EMMS and TFM: structure-dependent analysis of mass, momentum and energy conservation
Alternative TitleChem. Eng. Sci.
Song, Feifei1,2; Wang, Wei1; Hong, Kun1; Li, Jinghai1
2014-12-16
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume120Issue:DECPages:112-116
AbstractThe two-fluid model (TFM) has been widely applied in simulation of various multiphase flow systems In particular, for fine particle circulating fluidization, the drag force plays a critical role whereas the classic drag models based on empirical correlations of homogeneous fluidization are found inadequate. Therefore, various approaches have been proposed in recent years to account for the effects of mesoscale structure on the drag force, in which the energy minimization multi scale model (EMMS) has received rapidly growing applications. However, the relationship between the TFM and EMMS has not been clarified to enable their combination. To solve this problem, we present a structure dependent analysis of mass, momentum and energy conservation equations. This analysis is rooted in the structure dependent multi fluid model (SFM), which details the composition of drag forces and energy consumptions and their relationships with consideration of meso-strucLures. With assumption of homogeneous structures, it reduces to the TEM equations; for steady state systems with structures, it restores the force balance equations, equal pressure drop relation and energy relationship of the EMMS. In future, the scale dependence of this analysis deserves more efforts to understand the applicability of the EMMS stability condition on different scales. (C) 2014 Elsevier Lid. All rights reserved.; The two-fluid model (TFM) has been widely applied in simulation of various multiphase flow systems In particular, for fine particle circulating fluidization, the drag force plays a critical role whereas the classic drag models based on empirical correlations of homogeneous fluidization are found inadequate. Therefore, various approaches have been proposed in recent years to account for the effects of mesoscale structure on the drag force, in which the energy minimization multi scale model (EMMS) has received rapidly growing applications.
KeywordEmms Tem Cfd Meso-scale Fluidization Structure-dependent Analysts
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1010/j.ces.2014.08.057
URL查看原文
Indexed BySCI
Language英语
WOS KeywordSOLID RISER FLOWS ; CFD SIMULATION ; MESOSCALE STRUCTURES ; MULTISCALE CFD ; FLUIDIZED-BEDS ; SUBGRID MODEL ; SYSTEMS ; EQUATIONS ; BEHAVIOR ; DNS
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000344943800010
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11822
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Song, Feifei,Wang, Wei,Hong, Kun,et al. Unification of EMMS and TFM: structure-dependent analysis of mass, momentum and energy conservation[J]. CHEMICAL ENGINEERING SCIENCE,2014,120(DEC):112-116.
APA Song, Feifei,Wang, Wei,Hong, Kun,&Li, Jinghai.(2014).Unification of EMMS and TFM: structure-dependent analysis of mass, momentum and energy conservation.CHEMICAL ENGINEERING SCIENCE,120(DEC),112-116.
MLA Song, Feifei,et al."Unification of EMMS and TFM: structure-dependent analysis of mass, momentum and energy conservation".CHEMICAL ENGINEERING SCIENCE 120.DEC(2014):112-116.
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