CFD study of mixing and segregation of binary gas-solid flow in CFB risers with EMMS drag model
文献类型：会议论文
| 作者 | Qin, Zhiyuan1,2; Zhou, Quan1; Wang, Junwu1 |
| 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 | Gases - Mixing - Segregation (metallography) - Fluidization - Drag |
| 页码 | 275-280 |
| 英文摘要 | To consider the effects of the existence of different kinds of particles in gas-solid flow, an attempt is made to extend the Energy Minimization Multi-Scale (EMMS) drag model to binary gas-solid system. Four input parameters that can be obtained from CFD simulation, including two slip velocities between gas and each particle phase and two particle concentrations of each phase, are used to solve the proposed EMMS drag model. Heterogeneous indexes, which are used to modify the drag correlation obtained from homogeneous fluidization, are then predicted and fed into multi-fluid model (MFM) to predict the dynamical behavior of mixing and segregation of binary gas-solid flow. Several 3D CFD simulations with various operating conditions are carried out to validate the binary EMMS drag model. Simulation results fit well with the experimental data, which indicates that the EMMS drag model could capture the mixing and segregation characteristics of binary gas-solid flow. |
| 项目编号 | This study is financially supported by the National Natural Science Foundation of China under the grant No. 91334106 and the Strategic Priority Research Program" of the Chinese Academy of Sciences under the grant No.XDA07080200." |
| 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/122111/59286]  |
| 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 | Qin, Zhiyuan,Zhou, Quan,Wang, Junwu. CFD study of mixing and segregation of binary gas-solid flow in CFB risers with EMMS drag model[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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