Unification of EMMS and TFM: structure-dependent analysis of mass, momentum and energy conservation

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	Unification of EMMS and TFM: structure-dependent analysis of mass, momentum and energy conservation
	Song, Feifei 1,2; Wang, Wei 1; Hong, Kun 1; Li, Jinghai 1
刊名	CHEMICAL ENGINEERING SCIENCE
	2014-12-16
卷号	120 期号:DEC 页码:112-116
关键词	EMMS TEM CFD Meso-scale Fluidization Structure-dependent analysts
ISSN号	0009-2509
其他题名	Chem. Eng. Sci.
中文摘要	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. 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.
英文摘要	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.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	SOLID RISER FLOWS ; CFD SIMULATION ; MESOSCALE STRUCTURES ; MULTISCALE CFD ; FLUIDIZED-BEDS ; SUBGRID MODEL ; SYSTEMS ; EQUATIONS ; BEHAVIOR ; DNS
收录类别	SCI
原文出处	://WOS:000344943800010
语种	英语
WOS记录号	WOS:000344943800010
公开日期	2015-04-01
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/11822]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.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
推荐引用方式 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.