PR-DNS verification of the stability condition in the EMMS model
文献类型：期刊论文
| 作者 | Cui, Haihang2,5; Chang, Qi1,4,5; Chen, Jianhua5; Ge, Wei1,2,3,5 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 401页码:9 |
| 关键词 | Fluidization Mesoscale structure Energy consumption Stability condition Particle-resolved direct numerical simulation |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2020.125999 |
| 英文摘要 | The energy-minimization multi-scale (EMMS) model has succeeded in describing the mesoscale structures in gas-solid fluidization by introducing a stability condition to complete the model, viz., the mass specific energy consumption for suspending and transporting the solids, N-st tends to be a minimum. However, direct verification of this condition is very limited so far. This work, therefore, monitors the evolution of N-st in particle-resolved direct numerical simulation (PR-DNS) of a small-scale fluidized bed. Compared with the earlier simulation study on this issue based on pseudo-particle modeling (PPM), this work is more comprehensive thanks to the higher computational efficiency of PR-DNS. As a result, the previously neglected acceleration effect is now included in the force balance and the fluidization system is simulated under different initial distributions. The simulation and analysis demonstrate that, the stability condition is satisfied in all the cases, which further verifies the EMMS model. With PR-DNS as a powerful tool, deeper understanding of the EMMS model and gas-solid fluidization can be achieved in the future. |
| WOS关键词 | GAS-SOLID FLOW ; DIRECT NUMERICAL-SIMULATION ; IMMERSED BOUNDARY METHOD ; PARTICLE SIMULATION ; CFD SIMULATION ; FLUIDIZED-BEDS ; CYLINDER ; SYSTEMS ; DRAG ; EXPANSIONS |
| 资助项目 | National Natural Science Foundation of China (NSFC)[91834303] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences (CAS)[IAGM-2019-A13] ; Key Research Program of Frontier Science, CAS[QYZDJ-SSW-JSC029] ; State Key Laboratory of Multiphase Complex Systems[MPCS-2019-A-02] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000569901400007 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Science, CAS ; State Key Laboratory of Multiphase Complex Systems |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/42084]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Chen, Jianhua; Ge, Wei |
| 作者单位 | 1.Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 4.Tianjin Univ, Sch Chem Engn, Tianjin 300072, Peoples R China 5.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Haihang,Chang, Qi,Chen, Jianhua,et al. PR-DNS verification of the stability condition in the EMMS model[J]. CHEMICAL ENGINEERING JOURNAL,2020,401:9. |
| APA | Cui, Haihang,Chang, Qi,Chen, Jianhua,&Ge, Wei.(2020).PR-DNS verification of the stability condition in the EMMS model.CHEMICAL ENGINEERING JOURNAL,401,9. |
| MLA | Cui, Haihang,et al."PR-DNS verification of the stability condition in the EMMS model".CHEMICAL ENGINEERING JOURNAL 401(2020):9. |
入库方式： OAI收割
来源：过程工程研究所
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