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Fluid inhomogeneity within nanoslits and deviation from Hagen-Poiseuille flow
Wang, Yuying1,2; Xu, Junbo1; Yang, Chao1,2
2017-02-01
发表期刊AICHE JOURNAL
ISSN0001-1541
卷号63期号:2页码:834-842
摘要Recently, the deviation of nano-confined flows from classical hydrodynamic theories has been frequently reported. In this work, such a flow is theoretically investigated by means of dissipative particle dynamics (DPD) simulation. The simulation results show that the density and viscosity inhomogeneities near solid/fluid interfaces depends on the slit wettability only. Flow enhancement relative to the Hagen-Poiseuille (H-P) flow occurs together with the flow inhomogeneity. Combining of flow inhomogeneity and the Stokes equation, a theoretical model for flux calculation is established. As the slit being widened, the model can be simplified by gradually eliminating the higher order traces, and be simplified into the model with Navier's slip condition and the well-known H-P relation at last. The theoretical results of flux are in good agreement with the simulations by DPD. (c) 2016 American Institute of Chemical Engineers AIChE J, 63: 834-842, 2017
关键词Nanofluidics Nanoslit Hydrodynamics Dissipative Particle Dynamics Flux Model
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1002/aic.15409
收录类别SCI
语种英语
关键词[WOS]DISSIPATIVE PARTICLE DYNAMICS ; CARBON NANOTUBES ; SIMULATION ; WATER ; SLIP ; DIFFUSION ; PORES
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者973 Program(2012CB224806) ; National Natural Science Foundation of China(21490584 ; Major National Scientific Instrument Development Project(21427814) ; 91534105)
WOS记录号WOS:000392844900034
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21888
专题生化工程国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Wang, Yuying,Xu, Junbo,Yang, Chao. Fluid inhomogeneity within nanoslits and deviation from Hagen-Poiseuille flow[J]. AICHE JOURNAL,2017,63(2):834-842.
APA Wang, Yuying,Xu, Junbo,&Yang, Chao.(2017).Fluid inhomogeneity within nanoslits and deviation from Hagen-Poiseuille flow.AICHE JOURNAL,63(2),834-842.
MLA Wang, Yuying,et al."Fluid inhomogeneity within nanoslits and deviation from Hagen-Poiseuille flow".AICHE JOURNAL 63.2(2017):834-842.
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