Analysis of flow structure and calculation of drag coefficient for concurrent-up gas-solid flow
文献类型：期刊论文
| 作者 | Yang, N; Wang, W; Ge, W; Li, JH |
| 刊名 | CHINESE JOURNAL OF CHEMICAL ENGINEERING
 |
| 出版日期 | 2003-02-01 |
| 卷号 | 11期号:1页码:79-84 |
| 关键词 | drag coefficient two-phase flow multi-scale flow structure two-fluid model |
| ISSN号 | 1004-9541 |
| 其他题名 | Chin. J. Chem. Eng. |
| 中文摘要 | This study investigates the heterogeneous structure and its influence on drag coefficient for concurrent-up gas-solid flow. The energy-minimization multi-scale (EMMS) model is modified to simulate the variation of structure parameters with solids concentration, showing the tendency for particles to aggregate to form clusters and for fluid to pass around clusters. The global drag coefficient is resolved into that for the dense phase, for the dilute phase and for the so-called inter-phase, all of which can be obtained from their respective phase-specific structure parameters. The computational results show that the drag coefficients of the different phases are quite different, and the global drag coefficient calculated from the EMMS approach is much lower than that from the correlation of Wen and Yu. The simulation results demonstrate that the EMMS approach can well describe the heterogeneous flow structure, and is very promising for incorporation into the two-fluid model or the discrete particle model as the closure law for drag coefficient. |
| 英文摘要 | This study investigates the heterogeneous structure and its influence on drag coefficient for concurrent-up gas-solid flow. The energy-minimization multi-scale (EMMS) model is modified to simulate the variation of structure parameters with solids concentration, showing the tendency for particles to aggregate to form clusters and for fluid to pass around clusters. The global drag coefficient is resolved into that for the dense phase, for the dilute phase and for the so-called inter-phase, all of which can be obtained from their respective phase-specific structure parameters. The computational results show that the drag coefficients of the different phases are quite different, and the global drag coefficient calculated from the EMMS approach is much lower than that from the correlation of Wen and Yu. The simulation results demonstrate that the EMMS approach can well describe the heterogeneous flow structure, and is very promising for incorporation into the two-fluid model or the discrete particle model as the closure law for drag coefficient. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | FLUIDIZED-BEDS ; KINETIC-THEORY ; SIMULATION ; RISER ; HYDRODYNAMICS ; MODEL |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000181603300014 |
| 公开日期 | 2013-11-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5267]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, Multiphase React Lab, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, N,Wang, W,Ge, W,et al. Analysis of flow structure and calculation of drag coefficient for concurrent-up gas-solid flow[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2003,11(1):79-84. |
| APA | Yang, N,Wang, W,Ge, W,&Li, JH.(2003).Analysis of flow structure and calculation of drag coefficient for concurrent-up gas-solid flow.CHINESE JOURNAL OF CHEMICAL ENGINEERING,11(1),79-84. |
| MLA | Yang, N,et al."Analysis of flow structure and calculation of drag coefficient for concurrent-up gas-solid flow".CHINESE JOURNAL OF CHEMICAL ENGINEERING 11.1(2003):79-84. |
入库方式： OAI收割
来源：过程工程研究所
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