Mesoscale modeling for computational fluid dynamics of circulating fluidized beds
文献类型：会议论文
| 作者 | Wang, Wei1,2; Li, Jinghai1,2 |
| 出版日期 | 1905-07-09 |
| 会议日期 | May 23, 2017 - May 26, 2017 |
| 会议地点 | Krakow, Poland |
| 关键词 | Competition - Fluidized bed process - Fluidization - Fluidized beds - Two phase flow - Energy dissipation |
| 页码 | 73-88 |
| 英文摘要 | Gas-solid fluidized bed is a typical dissipative system, featuring meso-scale structures with bimodal distribution of parameters. To account for this characteristic, recent years have witnessed a blossom of meso-scale modeling research from various angles of view. In particular, by integrating the bimodal distribution into the structure-dependent analysis of mass, momentum and energy conservation, we can unify the hydrodynamic equations of the two-fluid model and those of the energy minimization multi-scale (EMMS) model. Further, by extending this structure-dependent analysis to the extremum behavior of energy dissipation, we find that the minimum energy dissipation rate applies only to the uniform flow in gas-dominated regime, but fails in the particle-fluid compromising fluidization regime. In contrast, the EMMS principle of compromise in competition can well describe the variational behavior of meso-scale structures, and hence the EMMS-based multi-scale computational fluid dynamics has been successfully applied in predicting fluidization behavior in both academy and industry. The concept of EMMS meso-scale modeling has been recently extended to the realm of hybrid computing, enabling us a quasi-real-time computation. Such a big jump of capability will radically modify our research mode, bringing us to the new paradigm of virtual process engineering. |
| 项目编号 | The authors acknowledge the financial supports of the National Natural Sciences Foundation of China (NSFC) under the Grant Nos. 21625605 and 91334204. |
| 资助机构 | Warsaw University of Technology |
| 会议录 | 12th International Conference on Fluidized Bed Technology, CFB 2017
 |
| 学科主题 | Computational Fluid Dynamics |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59285]  |
| 作者单位 | 1.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 2.University of Chinese Academy of Sciences, Beijing; 100049, China |
| 推荐引用方式 GB/T 7714 | Wang, Wei,Li, Jinghai. Mesoscale modeling for computational fluid dynamics of circulating fluidized beds[C]. 见:. Krakow, Poland. May 23, 2017 - May 26, 2017. |
入库方式： OAI收割
来源：过程工程研究所
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