| Non-equilibrium flow of van der Waals fluids in nano-channels | |
| Shan, Baochao; Ju, Long; Su, Wei; Guo, Zhaoli; Zhang YH(张勇豪) | |
| Source Publication | PHYSICS OF FLUIDS
 |
| 2023-05 | |
| Volume | 35Issue:5Pages:52004 |
| ISSN | 1070-6631 |
| Abstract | The Enskog-Vlasov equation provides a consistent description of the microscopic molecular interactions for real fluids based on the kinetic and mean-field theories. The fluid flows in nano-channels are investigated by the Bhatnagar-Gross-Krook (BGK) type Enskog-Vlasov model, which simplifies the complicated Enskog-Vlasov collision operator and enables large-scale engineering design simulations. The density distributions of real fluids are found to exhibit inhomogeneities across the nano-channel, particularly at large densities, as a direct consequence of the inhomogeneous force distributions caused by the real fluid effects including the fluid molecules' volume exclusion and the long-range molecular attraction. In contrast to the Navier-Stokes equation with the slip boundary condition, which fails to describe nano-scale flows due to the coexistence of confinement, non-equilibrium, and real fluid effects, the Enskog-Vlasov-BGK model is found to capture these effects accurately as confirmed by the corresponding molecular dynamics simulations for low and moderate fluid densities. |
| DOI | 10.1063/5.0148857 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000984929400005 |
| WOS Research Area | Mechanics ; Physics, Fluids & Plasmas |
| Funding Organization | UK's Engineering and Physical Sciences Research Council [EP/R041938/1] ; National Natural Science Foundation of China [51836003, 12002130] ; UK Consortium on Mesoscale Engineering Sciences (UKCOMES) under the UK Engineering and Physical Sciences Research Council [EP/R029598/1] |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Guo, ZL (corresponding author), Huazhong Univ Sci & Technol, Inst Interdisciplinary Res Math & Appl Sci, Wuhan 430074, Peoples R China. ; Zhang, YH (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing, 100190, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92423 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.{Shan Baochao} Univ Edinburgh Sch Engn Edinburgh EH9 3FB Scotland 2.{Ju Long} King Abdullah Univ Sci & Technol Div Phys Sci & Engn Computat Transport Phenomena Lab Thuwal 23955 Saudi Arabia 3.{Su Wei} Hong Kong Univ Sci & Technol Div Emerging Interdisciplinary Areas Clear Water Bay Hong Kong Peoples R China 4.{Su Wei} Hong Kong Univ Sci & Technol Dept Math Hong Kong Peoples R China 5.{Guo Zhaoli} Huazhong Univ Sci & Technol Inst Interdisciplinary Res Math & Appl Sci Wuhan 430074 Peoples R China 6.{Zhang Yonghao} Chinese Acad Sci Inst Mech State Key Lab High Temp Gas Dynam Beijing 100190 Peoples R China |
| Recommended Citation GB/T 7714 | Shan, Baochao,Ju, Long,Su, Wei,et al. Non-equilibrium flow of van der Waals fluids in nano-channels[J]. PHYSICS OF FLUIDS,2023,35,5,:52004.Rp_Au:Guo, ZL (corresponding author), Huazhong Univ Sci & Technol, Inst Interdisciplinary Res Math & Appl Sci, Wuhan 430074, Peoples R China., Zhang, YH (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing, 100190, Peoples R China. |
| APA | Shan, Baochao,Ju, Long,Su, Wei,Guo, Zhaoli,&张勇豪.(2023).Non-equilibrium flow of van der Waals fluids in nano-channels.PHYSICS OF FLUIDS,35(5),52004. |
| MLA | Shan, Baochao,et al."Non-equilibrium flow of van der Waals fluids in nano-channels".PHYSICS OF FLUIDS 35.5(2023):52004. |
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| File Name/Size | DocType | Version | Access | License | ||
| Jp2023A072.pdf（2705KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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