On the choice of mesoscale drag markers
文献类型：期刊论文
| 作者 | Tian, Yujie1,2 ; Geng, Jingwei1,2; Wang, Wei1,2
|
| 刊名 | AICHE JOURNAL
 |
| 出版日期 | 2022-01-10 |
| 页码 | 13 |
| ISSN号 | 0001-1541 |
| 关键词 | computational fluid dynamics filtered model fluidization mesoscale drag model multiscale modeling |
| DOI | 10.1002/aic.17558 |
| 英文摘要 | Multiscale simulations of fluidized beds should account for the effect of sub-grid structures on drag. How to extract the features of these structures in the form of proper finite quantities, namely markers, has posed great challenges in mesoscale drag modeling. The choice of markers has seldom been investigated in terms of their rationality and adequacy. This article introduces a two-step scheme that is applied in the classic experimental approach to reflect on the choice of markers. The steady-state definitional relations of the drag correction factor are deduced from force balance equations, with emphasis on the difference between definitional relations and constitutive relations. A comparison between common drag models obtained from fine-grid simulations and corresponding definitional relations shows that the challenge in developing a general mesoscale drag model cannot be circumvented by correlating the heterogeneity index or drift velocity with the solid volume fraction, slip velocity, and gas-phase pressure gradient. |
| WOS关键词 | GAS-PARTICLE FLOWS ; AVERAGED 2-FLUID MODEL ; FLUIDIZED-BEDS ; SOLID FLOWS ; CONSTITUTIVE MODELS ; CFD SIMULATION ; EMMS MODEL ; VALIDATION ; CLUSTER ; EQUATIONS |
| 资助项目 | National Natural Science Foundation of China[21625605] ; National Natural Science Foundation of China[21821005] ; National Natural Science Foundation of China[91834302] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000740669900001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/51637]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Tian, Yujie; Wang, Wei |
| 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, Sch Chem Engn, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Yujie,Geng, Jingwei,Wang, Wei. On the choice of mesoscale drag markers[J]. AICHE JOURNAL,2022:13. |
| APA | Tian, Yujie,Geng, Jingwei,&Wang, Wei.(2022).On the choice of mesoscale drag markers.AICHE JOURNAL,13. |
| MLA | Tian, Yujie,et al."On the choice of mesoscale drag markers".AICHE JOURNAL (2022):13. |
入库方式： OAI收割
来源：过程工程研究所
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