Fluid inhomogeneity within nanoslits and deviation from Hagen-Poiseuille flow | |
Wang, Yuying1,2; Xu, Junbo1; Yang, Chao1,2 | |
2017-02-01 | |
Source Publication | AICHE JOURNAL
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ISSN | 0001-1541 |
Volume | 63Issue:2Pages:834-842 |
Abstract | 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 |
Keyword | Nanofluidics Nanoslit Hydrodynamics Dissipative Particle Dynamics Flux Model |
Subtype | Article |
WOS Headings | Science & Technology ; Technology |
DOI | 10.1002/aic.15409 |
Indexed By | SCI |
Language | 英语 |
WOS Keyword | Dissipative Particle Dynamics ; Carbon Nanotubes ; Simulation ; Water ; Slip ; Diffusion ; Pores |
WOS Research Area | Engineering |
WOS Subject | Engineering, Chemical |
Funding Organization | 973 Program(2012CB224806) ; National Natural Science Foundation of China(21490584 ; Major National Scientific Instrument Development Project(21427814) ; 91534105) |
WOS ID | WOS:000392844900034 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.ipe.ac.cn/handle/122111/21888 |
Collection | 生化工程国家重点实验室 |
Affiliation | 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 |
Recommended Citation GB/T 7714 | 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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Fluid inhomogeneity (619KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | Application Full Text |
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