Knowledge Management System Of Institute of process engineering,CAS
| Coupling DPM with DNS for dynamic interphase force evaluation | |
| Zhang, Yong1,3; Chang, Qi1,4; Ge, Wei1,2,3 | |
| 2021-02-15 | |
| Source Publication | CHEMICAL ENGINEERING SCIENCE
 |
| ISSN | 0009-2509 |
| Volume | 231Pages:7 |
| Abstract | 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. |
| Keyword | Direct numerical simulation (DNS) Discrete particle model (DPM) Interphase force model Gas-solid flow Mapping Relaxation |
| DOI | 10.1016/j.ces.2020.116238 |
| Language | 英语 |
| WOS Keyword | IMMERSED BOUNDARY METHOD ; DIRECT NUMERICAL SIMULATIONS ; BENEFICIATION FLUIDIZED-BED ; PARTICLE SEGREGATION ; DRAG MODELS ; FLOW ; SYSTEMS ; ARRAYS ; SIZE |
| Funding Project | 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 Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | 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 |
| WOS ID | WOS:000609002800012 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/43222 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Ge, Wei |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100190, 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 |
| Recommended Citation 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. |
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