Knowledge Management System Of Institute of process engineering,CAS
| Effect of mesoscale structures on solid phase stress in gas-solid flows | |
| Dou, Jingxi1,2; Wang, Limin1,2; Ge, Wei1,2; Ouyang, Jie3 | |
| 2023 | |
| Source Publication | CHEMICAL ENGINEERING JOURNAL
 |
| ISSN | 1385-8947 |
| Volume | 455Pages:11 |
| Abstract | 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. |
| Keyword | Solid phase stress Kinetic theory of granular flow Mesoscale structures Gas-solid flows Particle-resolved direct numerical simulation |
| DOI | 10.1016/j.cej.2022.140825 |
| Language | 英语 |
| WOS Keyword | STRUCTURE-DEPENDENT DRAG ; KINETIC-THEORY ; GRANULAR FLOW ; EMMS DRAG ; MODEL ; SIMULATION ; BED ; MULTISCALE ; PARTICLES ; DYNAMICS |
| Funding Project | 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 Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| Funding Organization | National Natural Science Foundation of China ; National Key R&D Program of China ; National Numerical Wind Tunnel Project of China ; Chinese Academy of Sciences |
| WOS ID | WOS:000904850800001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/56203 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wang, Limin |
| Affiliation | 1.Inst Proc Engn, Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 3.Northwestern Polytech Univ, Sch Math & Stat, Xian 710129, Peoples R China |
| Recommended Citation 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. |
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