CAS OpenIR  > 多相复杂系统国家重点实验室
Structure-dependent analysis of energy dissipation in gas-solid flows: Beyond nonequilibrium thermodynamics
Tian, Yujie; Geng, Jingwei; Wang, Wei1
2017-11-02
发表期刊CHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
卷号171期号:NOV页码:271-281
摘要

Gas-solid fluidized bed is a typical dissipative system, featuring meso-scale structures with bimodal distribution of parameters. The energy-minimization multi-scale (EMMS) model focuses on such dissipative characteristics and has shown many successful applications. In previous work, through structure dependent analysis of mass, momentum and energy conservation, we have discussed the consistency between the hydrodynamic equations of two-fluid model (TFM) and those of the EMMS model. In this work, we extend this structure-dependent analysis to the extremum behavior of dissipation processes, revealing that the solution based on the minimum energy dissipation rate applies only to homogeneous, dilute flow states, but fails in the particle-fluid compromising fluidization regime, in particular, fails to predict choking transition. By comparison, the EMMS variational stability condition that is based on the principle of compromise in competition between dominant mechanisms well describes the flow regimes of fluidization. This work unfolds a fresh viewpoint to understand the EMMS stability condition that is beyond the analysis of extremum of energy dissipation. And it is expected to boost the development of EMMS-based meso-scale modeling in broader realm of multiphase flow systems. (C) 2017 Elsevier Ltd. All rights reserved.

关键词Emms Fluidization Meso-scale Energy Dissipation Entropy Production Nonequilibrium Thermodynamics
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.ces.2017.05.037
收录类别SCI
语种英语
关键词[WOS]MULTI-FLUID MODEL ; EULERIAN SIMULATION ; CFD SIMULATION ; 2-PHASE FLOW ; RISER FLOWS ; EMMS ; FLUIDIZATION ; BEDS ; MESOSCALE ; PARTICLES
WOS研究方向Engineering
WOS类目Engineering, Chemical
WOS记录号WOS:000409285000021
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23216
专题多相复杂系统国家重点实验室
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
Tian, Yujie,Geng, Jingwei,Wang, Wei. Structure-dependent analysis of energy dissipation in gas-solid flows: Beyond nonequilibrium thermodynamics[J]. CHEMICAL ENGINEERING SCIENCE,2017,171(NOV):271-281.
APA Tian, Yujie,Geng, Jingwei,&Wang, Wei.(2017).Structure-dependent analysis of energy dissipation in gas-solid flows: Beyond nonequilibrium thermodynamics.CHEMICAL ENGINEERING SCIENCE,171(NOV),271-281.
MLA Tian, Yujie,et al."Structure-dependent analysis of energy dissipation in gas-solid flows: Beyond nonequilibrium thermodynamics".CHEMICAL ENGINEERING SCIENCE 171.NOV(2017):271-281.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Structure-dependent (1127KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Tian, Yujie]的文章
[Geng, Jingwei]的文章
[Wang, Wei]的文章
百度学术
百度学术中相似的文章
[Tian, Yujie]的文章
[Geng, Jingwei]的文章
[Wang, Wei]的文章
必应学术
必应学术中相似的文章
[Tian, Yujie]的文章
[Geng, Jingwei]的文章
[Wang, Wei]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Structure-dependent analysis of energy dissipation in gas-solid flows_ Beyond nonequilibrium thermodynamics.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。