A simple and general sub-grid drag model for gas鈥搒olid fast fluidization
文献类型：期刊论文
| 作者 | Hu, Shanwei; Liu, Xinhua |
| 刊名 | Chemical Engineering Journal
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 421 |
| 关键词 | Drag - Computational fluid dynamics |
| ISSN号 | 13858947 |
| DOI | 10.1016/j.cej.2021.129922 |
| 英文摘要 | Great efforts have been paid to improve the Energy Minimization Multi-Scale (EMMS) model to better predict heterogeneous gas鈥搒olid flow using coarse-grid computational fluid dynamics (CFD) simulation. Nevertheless, the adopted drag correction factor (Hd) in the simulation was generally subject to macroscopic operating conditions (e.g., superficial gas and solid velocities, Ug and Gs), which called for rebuilding the Hd correlation if Ug or Gs varied. In this work we simplified the EMMS sub-grid model by replacing the stability condition with an equivalent cluster voidage correlation, thus making the model possess the Galilean invariance and avoiding the recalculation of Hd in case of varying operating conditions. The pre-constructed drag correction factor can facilitate the coarse-grid CFD simulation of gas鈥搒olid fast fluidization within a broad operation range. 漏 2021 Elsevier B.V. |
| 学科主题 | Fluidization |
| 项目编号 | This research is supported by the National Natural Science Foundation of China ( 22008240 ) and the Strategic Priority Research Program of the Chinese Academy of Sciences ( XDA21040400 ). |
| 出版者 | Elsevier B.V. |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/60251]  |
| 作者单位 | State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Hu, Shanwei,Liu, Xinhua. A simple and general sub-grid drag model for gas鈥搒olid fast fluidization[J]. Chemical Engineering Journal,2021,421. |
| APA | Hu, Shanwei,&Liu, Xinhua.(2021).A simple and general sub-grid drag model for gas鈥搒olid fast fluidization.Chemical Engineering Journal,421. |
| MLA | Hu, Shanwei,et al."A simple and general sub-grid drag model for gas鈥搒olid fast fluidization".Chemical Engineering Journal 421(2021). |
入库方式： OAI收割
来源：过程工程研究所
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