Assessment of kinetic theory for gas-solid flows using discrete particle method
文献类型：期刊论文
| 作者 | He, Mingming1,2 ; Zhao, Bidan1,2,3; Xu, Ji1,2,3; Kong, Lingkai1,2; Wang, Junwu1,2,3
|
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 34期号:9页码:12 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0117386 |
| 英文摘要 | Kinetic theory is a common choice for closing the solid phase stress in the continuum theory for dilute and moderate dense gas-solid flows. In this article, methods are proposed for postprocessing the data obtained from discrete particle simulations, and the results are then used to critically assess the fundamental assumptions of kinetic theory. It is shown that (i) the fundamental assumptions and predictions of kinetic theory are, respectively, valid and accurate in homogeneous granular flows, as expected. Those results prove that the methods for data postprocessing are effective; (ii) in the case of nonequilibrium and heterogeneous gas-solid flows, nearly all fundamental assumptions get challenged, and the predictions of kinetic theory, in terms of collision frequency and particle pressure, deviate significantly from the statistical results of discrete particle simulation. Therefore, the standard kinetic theory is insufficient to provide the constitutive laws for continuum modeling of heterogeneous gas-solid flows. Published under an exclusive license by AIP Publishing. |
| WOS关键词 | DIRECT NUMERICAL-SIMULATION ; EQUATION-OF-STATE ; MOLECULAR CHAOS ; FLUIDIZED-BEDS ; CONSTITUTIVE RELATIONS ; GRANULAR FLOW ; DENSE ; MODEL ; GELDART |
| 资助项目 | National Natural Science Foundation of China[11988102] ; National Natural Science Foundation of China[21908223] ; National Natural Science Foundation of China[22078330] ; Innovation Academy for Green Manufacture of the Chinese Academy of Sciences[IAGM2022D02] ; National Key R&D Program of China[2021YFB1715500] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA29040200] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2019050] ; Fund of State Key Laboratory of Multiphase Complex Systems[MPCS-2021-A-16] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| 出版者 | AIP Publishing |
| WOS记录号 | WOS:000860335200012 |
| 资助机构 | National Natural Science Foundation of China ; Innovation Academy for Green Manufacture of the Chinese Academy of Sciences ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Fund of State Key Laboratory of Multiphase Complex Systems |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/55103]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhao, Bidan; Wang, Junwu |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Mingming,Zhao, Bidan,Xu, Ji,et al. Assessment of kinetic theory for gas-solid flows using discrete particle method[J]. PHYSICS OF FLUIDS,2022,34(9):12. |
| APA | He, Mingming,Zhao, Bidan,Xu, Ji,Kong, Lingkai,&Wang, Junwu.(2022).Assessment of kinetic theory for gas-solid flows using discrete particle method.PHYSICS OF FLUIDS,34(9),12. |
| MLA | He, Mingming,et al."Assessment of kinetic theory for gas-solid flows using discrete particle method".PHYSICS OF FLUIDS 34.9(2022):12. |
入库方式： OAI收割
来源：过程工程研究所
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