Numerical simulation and experimental validation of gas-solid flow in the riser of a dense fluidized bed reactor
文献类型：期刊论文
| 作者 | Wang, Xueyao; Jiang, Fan; Xu, Xiang; Wang, Shengdian; Wu, Xuezhi; Fan, Baoguo; Liao, Liangliang; Wang, Jiachang; Xiao, Yunhan |
| 刊名 | PARTICUOLOGY
 |
| 出版日期 | 2009-08-01 |
| 卷号 | 7期号:4页码:278-282 |
| 关键词 | Gas-solid flow Drag model EMMS Exit configuration |
| 英文摘要 | Gas-solid flow in the riser of a dense fluidized bed using Geldart B particles (sand), at high gas velocity (7.6-15.5 m/s) and with comparatively high solid flux (140-333.8 kg/m(2) s), was investigated experimentally and simulated by computational fluid dynamics (CFD), both two- and three-dimensional and using the Gidaspow, O'Brien-Syamlal, Koch-Hill-Ladd and EMMS drag models. The results predicted by EMMS drag model showed the best agreement with experimental results. Calculated axial solids hold-up profiles, in particular, are well consistent with experimental data. The flow structure in the riser was well represented by the CFD results, which also indicated the cause of cluster formation. Complex hydrodynamical behaviors of particle cluster were observed. The relative motion between gas and solid phases and axial heterogeneity in the three subzones of the riser were also investigated, and were found to be consistent with predicted flow structure. The model could well depict the difference between the two exit configurations used, viz., semi-bend smooth exit and T-shaped abrupt exit. The numerical results indicate that the proposed EMMS method gives better agreement with the experimental results as compared with the Gidaspow, O'Brien-Syamlal, Koch-Hill-Ladd models. As a result, the proposed drag force model can be used as an efficient approach for the dense gas-solid two-phase flow. (C) 2009 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Materials Science |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000269873900008 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/106396]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | Chinese Acad Sci, Inst Engn Thermophys, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xueyao,Jiang, Fan,Xu, Xiang,et al. Numerical simulation and experimental validation of gas-solid flow in the riser of a dense fluidized bed reactor[J]. PARTICUOLOGY,2009,7(4):278-282. |
| APA | Wang, Xueyao.,Jiang, Fan.,Xu, Xiang.,Wang, Shengdian.,Wu, Xuezhi.,...&Xiao, Yunhan.(2009).Numerical simulation and experimental validation of gas-solid flow in the riser of a dense fluidized bed reactor.PARTICUOLOGY,7(4),278-282. |
| MLA | Wang, Xueyao,et al."Numerical simulation and experimental validation of gas-solid flow in the riser of a dense fluidized bed reactor".PARTICUOLOGY 7.4(2009):278-282. |
入库方式： OAI收割
来源：工程热物理研究所
浏览0
下载0
收藏0
其他版本
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。