A structure-based drag model for the simulation of Geldart A and B particles in turbulent fluidized beds
文献类型：期刊论文
| 作者 | Chen, Jie1,2; Li, Hongzhong1; Lv, Xiaolin1,2; Zhu, Qingshan1 |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2015-04-01 |
| 卷号 | 274期号:APR页码:112-122 |
| 关键词 | Turbulent fluidization Simulation Drag model Local structure Geldart A and B particles |
| ISSN号 | 0032-5910 |
| 通讯作者 | Li, HZ (reprint author), Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China. |
| 英文摘要 | To simulate the hydrodynamics of turbulent fluidized beds (TFBs), the flow structure of the TFBs was divided into quasi discrete cluster and void phases. Then, nine local structural parameters were used to describe the internal flow structure of TFBs and these structural parameters were obtained by solving momentum conservation equation, mass conservation equation and pressure balance equation. The structure-based drag model was incorporated into the two-fluid model to simulate the gas-solid flow behavior in the TFBs, considering the effect of the non-uniform flow structure. Considering different particle types and bed diameters, four cases were set to demonstrate the effectiveness and adaptability of this model. The reasonable agreement between the simulation results and the experiment data showed that the method adopted in this work could effectively predict the gas-solid flow behavior in TFBs with Geldart A and B particles. Besides, the non-uniform structures in both radial and axial directions were successfully simulated. Meanwhile, there is no obvious difference between Geldart A and B particles. The solid concentration difference between the wall and the center region decreases with the increase of the bed diameters. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 学科主题 | Engineering |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | GAS-SOLID FLOW ; FCC PARTICLES ; CFD SIMULATION ; SYSTEMS ; HYDRODYNAMICS ; VALIDATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000351973200015 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/13792]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 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, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Jie,Li, Hongzhong,Lv, Xiaolin,et al. A structure-based drag model for the simulation of Geldart A and B particles in turbulent fluidized beds[J]. POWDER TECHNOLOGY,2015,274(APR):112-122. |
| APA | Chen, Jie,Li, Hongzhong,Lv, Xiaolin,&Zhu, Qingshan.(2015).A structure-based drag model for the simulation of Geldart A and B particles in turbulent fluidized beds.POWDER TECHNOLOGY,274(APR),112-122. |
| MLA | Chen, Jie,et al."A structure-based drag model for the simulation of Geldart A and B particles in turbulent fluidized beds".POWDER TECHNOLOGY 274.APR(2015):112-122. |
入库方式： OAI收割
来源：过程工程研究所
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