IMECH-IR  > 非线性力学国家重点实验室
Dissolutive flow in nanochannels: transition between plug-like and Poiseuille-like
Miao Q; Yuan QZ(袁泉子); Zhao YP(赵亚溥)
Source PublicationMICROFLUIDICS AND NANOFLUIDICS
2018-12-01
Volume22Issue:12Pages:Ar-141
ISSN1613-4982
AbstractDynamic properties of dissolutive flow in nanochannels were investigated by molecular dynamics simulations. It turned out that the liquid flow pattern changes greatly after the dissolution effect taken into consideration. Liquid inside the channel has a plug-like velocity profile when the dissolubility is low, whereas a Poiseuille-like flow was observed as the dissolubility increases. By introducing the dissolution term to molecular kinetic theory, we explained the physical mechanisms of velocity transition. During which a modified dimensionless Galilei number was proposed to describe the effect of main forces. The results showed that in pressure-driven flow, when the dissolubility is low, the dominant dissipation is the viscous dissipation and the theoretical model of insolubility is acceptable. However, as the dissolubility increases, the dissolving dissipation takes priority, which results in the velocity profiles becoming Poiseuille-like. In addition, we analyzed the evolution of fluid density, number of dissolved solid particles and concentration distribution of solute. The liquid density varying from layered oscillation to uniform distribution was obtained, which can be described by a critical number. The analysis of solute concentration helps to establish the scaling relation among the dissolution rate, convection velocity, and diffusion coefficient. These findings not only help to understand the physical mechanisms of dissolutive flow but also help to control and optimize the flow patterns in dissoluble channels.
KeywordDissolutive flow Nanochannels Transport properties Molecular dynamics simulation
DOI10.1007/s10404-018-2146-1
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000450945400002
WOS KeywordMOLECULAR-DYNAMICS SIMULATION ; CARBON NANOTUBES ; CHEMICAL DISSOLUTION ; LIQUID SLIP ; WATER ; TRANSPORT ; SYSTEM ; CLASSIFICATION ; WETTABILITY ; MECHANISMS
WOS Research AreaNanoscience & Nanotechnology ; Instruments & Instrumentation ; Physics, Fluids & Plasmas
WOS SubjectScience & Technology - Other Topics ; Instruments & Instrumentation ; Physics
Funding OrganizationNational Natural Science Foundation of China (NSFC) [11722223, 11672300, 11872363, 51861145314] ; CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-JSC019] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22040401]
Classification二类
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78157
Collection非线性力学国家重点实验室
Affiliation1.[Miao, Qing
2.Yuan, Quanzi
3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Miao Q,Yuan QZ,Zhao YP. Dissolutive flow in nanochannels: transition between plug-like and Poiseuille-like[J]. MICROFLUIDICS AND NANOFLUIDICS,2018,22(12):Ar-141.
APA Miao Q,袁泉子,&赵亚溥.(2018).Dissolutive flow in nanochannels: transition between plug-like and Poiseuille-like.MICROFLUIDICS AND NANOFLUIDICS,22(12),Ar-141.
MLA Miao Q,et al."Dissolutive flow in nanochannels: transition between plug-like and Poiseuille-like".MICROFLUIDICS AND NANOFLUIDICS 22.12(2018):Ar-141.
Files in This Item: Download All
File Name/Size DocType Version Access License
irJ2018086.pdf(2125KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
IrJ2018380.pdf(2125KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Miao Q]'s Articles
[袁泉子]'s Articles
[赵亚溥]'s Articles
Baidu academic
Similar articles in Baidu academic
[Miao Q]'s Articles
[袁泉子]'s Articles
[赵亚溥]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Miao Q]'s Articles
[袁泉子]'s Articles
[赵亚溥]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: irJ2018086.pdf
Format: Adobe PDF
File name: IrJ2018380.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.