Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6119
Title: Law of the nano-wall” in nano-channel gas flows
Authors: Barışık, Murat
Beşkök, Ali
Keywords: Mass flow rate
Scale effects
Wall force field effects
Flow of gases
Nano-flows
Publisher: Springer
Source: Barışık, M., and Beşkök, A. (2016). Law of the nano-wall” in nano-channel gas flows. Microfluidics and Nanofluidics, 20(3), 1-9. doi:10.1007/s10404-016-1713-6
Abstract: Molecular dynamics simulations of force-driven nano-channel gas flows show two distinct flow regions. While the bulk flow region can be determined using kinetic theory, transport in the near-wall region is dominated by gas–wall interactions. This duality enables definition of an inner-layer scaling, (Formula presented.) , based on the molecular dimensions. For gas–wall interactions determined by Lennard–Jones potential, the velocity distribution for (Formula presented.) exhibits a universal behavior as a function of the local Knudsen number and gas–wall interaction parameters, which can be interpreted as the “law of the nano-wall.” Knowing the velocity and density distributions within this region and using the bulk flow velocity profiles from Beskok–Karniadakis model (Beskok and Karniadakis in Microscale Thermophys Eng 3(1):43–77, 1999), we outline a procedure that can correct kinetic-theory-based mass flow rate predictions in the literature for various nano-channel gas flows.
URI: http://doi.org/10.1007/s10404-016-1713-6
http://hdl.handle.net/11147/6119
ISSN: 1613-4982
16134990
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
6119.pdfMakale969.52 kBAdobe PDFThumbnail
View/Open
Show full item record



CORE Recommender

SCOPUSTM   
Citations

22
checked on Mar 22, 2024

WEB OF SCIENCETM
Citations

21
checked on Mar 16, 2024

Page view(s)

518
checked on Mar 25, 2024

Download(s)

272
checked on Mar 25, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.