Coupling DPM with DNS for dynamic interphase force evaluation
文献类型：期刊论文
| 作者 | Zhang, Yong1,2; Chang, Qi1,3; Ge, Wei1,2,4 |
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2021-02-15 |
| 卷号 | 231页码:7 |
| 关键词 | Direct numerical simulation (DNS) Discrete particle model (DPM) Interphase force model Gas-solid flow Mapping Relaxation |
| ISSN号 | 0009-2509 |
| DOI | 10.1016/j.ces.2020.116238 |
| 英文摘要 | Discrete particle method (DPM) and direct numerical simulation (DNS) have been widely used to simulate gas-solid flow. DPM is computationally efficient but its accuracy is significantly dependent on the selection of interphase interaction models, whereas DNS is accurate but computationally expensive. In this work, we proposed a multi-scale method, DPM-DNS, where DNS of a relaxation process with modest computational cost was dynamically coupled to the DPM framework to evaluate the interphase force more accurately, thanks to the large density ratio and particle Stokes number in gas-solid flow. The simulation results demonstrated that the resultant interphase force distribution and concentration profiles calculated by DPM-DNS are almost identical to pure DNS, but the computational speed is more than 30 times higher than DNS, though still much lower than DPM. Future work on the relaxation scheme and the mapping algorithm between DPM and DNS may improve the efficiency of DPM-DNS more significantly. (C) 2020 Published by Elsevier Ltd. |
| WOS关键词 | IMMERSED BOUNDARY METHOD ; DIRECT NUMERICAL SIMULATIONS ; BENEFICIATION FLUIDIZED-BED ; PARTICLE SEGREGATION ; DRAG MODELS ; FLOW ; SYSTEMS ; ARRAYS ; SIZE |
| 资助项目 | National Natural Science Foundation of China[22008239] ; National Natural Science Foundation of China[91834303] ; China Postdoctoral Science Foundation[2019M660796] ; Key Research Program of Frontier Science, Chinese Academy of Sciences[QYZDJ-SSW-JSC029] ; Transformational Technologies for Clean Energy and Demonstration[XDA21030700] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21030700] ; Science Challenge Project[TZ2016001] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000609002800012 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Key Research Program of Frontier Science, Chinese Academy of Sciences ; Transformational Technologies for Clean Energy and Demonstration ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Science Challenge Project |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/43221]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Ge, Wei |
| 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, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 3.Tianjin Univ, Sch Chem Engn, Tianjin 300072, Peoples R China 4.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yong,Chang, Qi,Ge, Wei. Coupling DPM with DNS for dynamic interphase force evaluation[J]. CHEMICAL ENGINEERING SCIENCE,2021,231:7. |
| APA | Zhang, Yong,Chang, Qi,&Ge, Wei.(2021).Coupling DPM with DNS for dynamic interphase force evaluation.CHEMICAL ENGINEERING SCIENCE,231,7. |
| MLA | Zhang, Yong,et al."Coupling DPM with DNS for dynamic interphase force evaluation".CHEMICAL ENGINEERING SCIENCE 231(2021):7. |
入库方式： OAI收割
来源：过程工程研究所
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