Effect of mesoscale structures on solid phase stress in gas-solid flows
文献类型：期刊论文
| 作者 | Dou, Jingxi1,3; Wang, Limin1,3; Ge, Wei1,3; Ouyang, Jie2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2023 |
| 卷号 | 455页码:11 |
| 关键词 | Solid phase stress Kinetic theory of granular flow Mesoscale structures Gas-solid flows Particle-resolved direct numerical simulation |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2022.140825 |
| 英文摘要 | Solid phase stress plays an important role in hydrodynamic modeling and simulations of gas-solid flows. However, heterogeneous gas-solid flows are typically regarded as homogeneous systems. Their solid phase stresses are usually calculated by the classical kinetic theory of granular flow (KTGF) without considering mesoscale structures, which is a major source of inaccuracies. This work investigates the effect of mesoscale structures in gas-solid flows via a dilute-dense two-phase partition, and proposes a phase-specific model to predict solid phase stress. Subsequently, the sensitive of threshold for phase partition is discussed, and a specific threshold is utilized in the proposed model to investigate the effect of mesoscale structures on solid phase stress with large-scale particle-resolved direct numerical simulation (PR-DNS) data. Numerical results show that classical KTGF underestimates the solid phase stress due to the ignorance of these structures. |
| WOS关键词 | STRUCTURE-DEPENDENT DRAG ; KINETIC-THEORY ; GRANULAR FLOW ; EMMS DRAG ; MODEL ; SIMULATION ; BED ; MULTISCALE ; PARTICLES ; DYNAMICS |
| 资助项目 | National Natural Science Foundation of China ; National Key R&D Program of China ; National Numerical Wind Tunnel Project of China ; Chinese Academy of Sciences ; [51776212] ; [91434113] ; [2018YFB1500902] ; [NNW2020ZT1-A20] ; [QYZDB-SSW-SYS029] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000904850800001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; National Key R&D Program of China ; National Numerical Wind Tunnel Project of China ; Chinese Academy of Sciences |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/56202]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Limin |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 2.Northwestern Polytech Univ, Sch Math & Stat, Xian 710129, Peoples R China 3.Inst Proc Engn, Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dou, Jingxi,Wang, Limin,Ge, Wei,et al. Effect of mesoscale structures on solid phase stress in gas-solid flows[J]. CHEMICAL ENGINEERING JOURNAL,2023,455:11. |
| APA | Dou, Jingxi,Wang, Limin,Ge, Wei,&Ouyang, Jie.(2023).Effect of mesoscale structures on solid phase stress in gas-solid flows.CHEMICAL ENGINEERING JOURNAL,455,11. |
| MLA | Dou, Jingxi,et al."Effect of mesoscale structures on solid phase stress in gas-solid flows".CHEMICAL ENGINEERING JOURNAL 455(2023):11. |
入库方式： OAI收割
来源：过程工程研究所
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