Mesoscale-structure-based dynamic multiscale method for gas-solid flow | |
Chen, Xizhong; Wang, Junwu | |
刊名 | CHEMICAL ENGINEERING SCIENCE |
2018-12-31 | |
卷号 | 192页码:864-881 |
关键词 | Two-fluid Model Discrete Particle Model Dynamic Multiscale Method Gas-solid Flows Mesoscale Structures Multiscale Simulation |
ISSN号 | 0009-2509 |
DOI | 10.1016/j.ces.2018.08.019 |
英文摘要 | Multiscale methods have recently underpinned the successful simulation of gas-solid flow. In our prior study (Chen and Wang, AIChE Journal, 2017, 63: 3681-3691), a dynamic multiscale method (DMM) has been proposed to concurrently couple different simulation models in different simulation domains where discrete particle model (DPM) is used in the near wall regions and the rest of simulation domain is solved by two-fluid model (TFM). In this study, a mesoscale-structure-based mapping method was further proposed and implemented into the framework of DMM. The recently developed EMMS-based particle velocity distribution function (Wang et al., AIChE Journal, 2016, 62: 2649-2657), which was derived by assuming that there is a two-phase structure in a computational grid, was used for mapping between different models. In addition, the stability condition of the EMMS model was undertaken to locate the newly inserted particles during the boundary mapping process from the TFM to the DPM. The simulation results of gas-solid flow in a riser containing Geldart B particles using the proposed DMM have compared with those of using the full TFM and full DPM, which verifies its fidelities. (C) 2018 Elsevier Ltd. All rights reserved. |
资助项目 | National Natural Science Foundation of China[21422608] |
WOS关键词 | Discrete Particle Simulation ; Direct Numerical-simulation ; Lattice Boltzmann Simulations ; Computational Fluid-dynamics ; Atomistic-continuum Methods ; Kinetic-theory ; Eulerian Simulation ; 2-fluid Model ; Mass-transfer ; Hybrid Model |
WOS研究方向 | Engineering |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000443999000071 |
资助机构 | National Natural Science Foundation of China |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/26030] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Wang, Junwu |
作者单位 | Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Xizhong,Wang, Junwu. Mesoscale-structure-based dynamic multiscale method for gas-solid flow[J]. CHEMICAL ENGINEERING SCIENCE,2018,192:864-881. |
APA | Chen, Xizhong,&Wang, Junwu.(2018).Mesoscale-structure-based dynamic multiscale method for gas-solid flow.CHEMICAL ENGINEERING SCIENCE,192,864-881. |
MLA | Chen, Xizhong,et al."Mesoscale-structure-based dynamic multiscale method for gas-solid flow".CHEMICAL ENGINEERING SCIENCE 192(2018):864-881. |
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