A bubble-based EMMS model for gas-solid bubbling fluidization
文献类型：期刊论文
| 作者 | Shi, Zhansheng1,2; Wang, Wei1,2; Li, Jinghai1,2 |
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2011-11-15 |
| 卷号 | 66期号:22页码:5541-5555 |
| 关键词 | Meso-scale Fluidization Bubble Simulation Hydrodynamics Drag coefficient |
| ISSN号 | 0009-2509 |
| 通讯作者 | Wang, W |
| 英文摘要 | An EMMS/bubbling model for gas-solid bubbling fluidized bed was proposed based on the energy-minimization multi-scale (EMMS) method (Li and Kwauk, 1994). In this new model, the meso-scale structure was characterized with bubbles in place of clusters of the original EMMS method. Accordingly, the bubbling fluidized bed was resolved into the suspending and the energy-dissipation sub-systems over three sub-phases, i.e., the emulsion phase, the bubble phase and their inter-phase in-between. A stability condition of minimization of the energy consumption for suspending particles (N(5)-> min) was proposed, to close the hydrodynamic equations on these sub-phases. This bubble-based EMMS model has been validated and found in agreement with experimental data available in literature. Further, the unsteady-state version of the model was used to calculate the drag coefficient for two-fluid model (TFM). It was found that TFM simulation with EMMS/bubbling drag coefficient allows using coarser grid than that with homogeneous drag coefficient, resulting in both good predictability and scalability. (C) 2011 Elsevier Ltd. 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] | CFD SIMULATION ; MULTISCALE CFD ; FLOW STRUCTURE ; BED EXPANSION ; FINE POWDERS ; 2-PHASE FLOW ; DENSE PHASE ; HYDRODYNAMICS ; PARTICLES ; GELDART |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000295724600010 |
| 公开日期 | 2013-10-30 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4569]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Zhansheng,Wang, Wei,Li, Jinghai. A bubble-based EMMS model for gas-solid bubbling fluidization[J]. CHEMICAL ENGINEERING SCIENCE,2011,66(22):5541-5555. |
| APA | Shi, Zhansheng,Wang, Wei,&Li, Jinghai.(2011).A bubble-based EMMS model for gas-solid bubbling fluidization.CHEMICAL ENGINEERING SCIENCE,66(22),5541-5555. |
| MLA | Shi, Zhansheng,et al."A bubble-based EMMS model for gas-solid bubbling fluidization".CHEMICAL ENGINEERING SCIENCE 66.22(2011):5541-5555. |
入库方式： OAI收割
来源：过程工程研究所
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