CAS OpenIR  > 多相复杂系统国家重点实验室
Fine-grid two-fluid modeling of fluidization of Geldart A particles
Hong, Kun1,2; Chen, Sheng1,3; Wang, Wei1; Li, Jinghai1
2016-08-01
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume296Issue:AUGPages:2-16
AbstractA series of fine-grid simulation with two-fluid model (TFM) is performed for bubbling, turbulent and circulating fluidized beds (CFB) with Geldart A particles. The results show that the fine-grid TFM with homogeneous drag seems feasible for simulation of low-velocity, bubbling fluidized beds. However, the fidelity of fine-grid TFM declines with the increase of gas velocity. In particular, the solids flux predicted deviates much from the experimental data of CFB though the clustering phenomenon can be captured with refinement of grid. In contrast, the structure-dependent approach as exemplified by the energy-minimization multi-scale (EMMS)-based multi-fluid model gives better agreement with experimental data. This discrepancy raises the question of the applicability of the local equilibrium assumption underlying the TFM. It also sheds light to the necessity of meso-scale modeling and the critical role of solids flux to evaluate the simulation of CFB. (C) 2015 Elsevier B.V. All rights reserved.
KeywordMeso-scale Emms Two-fluid Model Multi-scale Fluidization Multiphase Flow
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.powtec.2015.07.003
Indexed BySCI
Language英语
WOS KeywordSOLID RISER FLOWS ; MULTI-FLUID MODEL ; WALL BOUNDARY-CONDITION ; MASS-TRANSFER MODEL ; CFD SIMULATION ; KINETIC-THEORY ; PART II ; MESOSCALE STRUCTURES ; FILTERED MODEL ; SUBGRID MODEL
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationMinistry of Science and Technology(2012CB215003) ; National Natural Science Foundation of China(91334204 ; Chinese Academy of Sciences(XDA07080100) ; 21406081 ; 21176240)
WOS IDWOS:000377739800002
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21154
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.Huaiyin Inst Technol, Coll Life Sci & Chem Engn, Huaian 223003, Peoples R China
3.China Univ Petr, State Key Lab Heavy Oil, Beijing 102249, Peoples R China
Recommended Citation
GB/T 7714
Hong, Kun,Chen, Sheng,Wang, Wei,et al. Fine-grid two-fluid modeling of fluidization of Geldart A particles[J]. POWDER TECHNOLOGY,2016,296(AUG):2-16.
APA Hong, Kun,Chen, Sheng,Wang, Wei,&Li, Jinghai.(2016).Fine-grid two-fluid modeling of fluidization of Geldart A particles.POWDER TECHNOLOGY,296(AUG),2-16.
MLA Hong, Kun,et al."Fine-grid two-fluid modeling of fluidization of Geldart A particles".POWDER TECHNOLOGY 296.AUG(2016):2-16.
Files in This Item:
File Name/Size DocType Version Access License
Fine-grid two-fluid (4833KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Hong, Kun]'s Articles
[Chen, Sheng]'s Articles
[Wang, Wei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hong, Kun]'s Articles
[Chen, Sheng]'s Articles
[Wang, Wei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hong, Kun]'s Articles
[Chen, Sheng]'s Articles
[Wang, Wei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.