A numerical study of gas-solid flow hydrodynamics in a riser under dense suspension upflow regime
文献类型：期刊论文
| 作者 | Zhang, Yawen1,2,3; Lei, Fulin1,2; Wang, Shengdian1,2; Xu, Xiang1,2; Xiao, Yunhan1,2 |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2015-08-01 |
| 卷号 | 280页码:227-238 |
| 关键词 | CFD Two-fluid model Dense suspension upflow Hydrodynamics |
| 英文摘要 | The Eulerian-Eulerian two-fluid model coupled with the EMMS/Matrix drag model was employed to investigate the gas-solid flow hydrodynamics in the riser of high-density circulating fluidized bed using Geldart B particles under the dense suspension upflow (DSU) regime. Based on the 2D simulations of two test cases, the predicted axial and radial profiles of solid volume fraction agreed well with the experimental observations, and it could capture the key characteristics of the DSU regime. The transient solid flux and the power spectral density of pressure fluctuation were discussed. The 2D simulation results using the EMMS/Matrix and the Gidaspow drag models were compared in details, and the EMMS/Matrix drag model gave better radial distributions against experimental data, but the predicted radial profiles were improved by solving partial differential equation of granular temperature with the Gidaspow drag model. The 3D simulation with the EMMS/Matrix drag model was also performed, and the differences in the predicted axial and radial profiles of solid volume fraction between 2D and 3D simulations were not significant. The two-dimensional two-fluid model with the EMMS/Matrix drag model is applicable to the simulation of gas-solid flow in the riser under the DSU regime. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | CIRCULATING FLUIDIZED-BED ; STRUCTURE-DEPENDENT DRAG ; EULERIAN SIMULATION ; CFB RISERS ; GELDART GROUPS ; KINETIC-THEORY ; FCC PARTICLES ; EMMS MODEL ; PART II ; BEHAVIOR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000356208700026 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/98915]  |
| 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 | 1.Chinese Acad Sci, Inst Engn Thermophys, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Res Ctr Clean Energy & Power, Lianyungang 222069, Jiangsu, Peoples R China 3.Univ Chinese Acad Sci, Being 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yawen,Lei, Fulin,Wang, Shengdian,et al. A numerical study of gas-solid flow hydrodynamics in a riser under dense suspension upflow regime[J]. POWDER TECHNOLOGY,2015,280:227-238. |
| APA | Zhang, Yawen,Lei, Fulin,Wang, Shengdian,Xu, Xiang,&Xiao, Yunhan.(2015).A numerical study of gas-solid flow hydrodynamics in a riser under dense suspension upflow regime.POWDER TECHNOLOGY,280,227-238. |
| MLA | Zhang, Yawen,et al."A numerical study of gas-solid flow hydrodynamics in a riser under dense suspension upflow regime".POWDER TECHNOLOGY 280(2015):227-238. |
入库方式： OAI收割
来源：工程热物理研究所
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