Non-equilibrium flow of van der Waals fluids in nano-channels

doi:10.1063/5.0148857

	Non-equilibrium flow of van der Waals fluids in nano-channels
	Shan, Baochao ; Ju, Long ; Su, Wei ; Guo, Zhaoli ; Zhang YH(张勇豪)
发表期刊	PHYSICS OF FLUIDS
	2023-05
卷号	35 期号:5 页码:52004
ISSN	1070-6631
摘要	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
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000984929400005
WOS研究方向	Mechanics ; Physics, Fluids & Plasmas
项目资助者	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]
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	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.
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/92423
专题	高温气体动力学国家重点实验室
作者单位	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
推荐引用方式 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.
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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