Free-Molecular Gas Flow in a Narrow (Nanosize) Channel

We have analyzed a free-molecular gas flow in cylindrical channels (capillaries) with impermeable walls for various schemes of the scattering of molecules by channel walls, taking account of the surface diffusion of adsorbed molecules, and a gas flow in such channels with allowance for phase transfo...

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Bibliographic Details
Published inJournal of engineering physics and thermophysics Vol. 87; no. 4; pp. 802 - 814
Main Authors Levdanskii, V. V., Roldugin, V. I., Zhdanov, V. M., Zdimal, V.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.07.2014
Springer
Subjects
Analysis
Classical Mechanics
Complex Systems
Dielectric films
Engineering
Engineering Thermodynamics
Heat and Mass Transfer
Industrial Chemistry/Chemical Engineering
Thermodynamics
Thin films
narrow channels
phase transformations
free-molecular gas flow
surface diffusion
gaseous mixture
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Summary:We have analyzed a free-molecular gas flow in cylindrical channels (capillaries) with impermeable walls for various schemes of the scattering of molecules by channel walls, taking account of the surface diffusion of adsorbed molecules, and a gas flow in such channels with allowance for phase transformations on their walls. A substantial influence of surface diffusion on the mass transfer in gaseous mixtures in the indicated channels has been revealed. The modification of the phenomenological relations of the nonequilibrium thermodynamics of discontinuous systems is considered. The problem of uniform deposition of thin films on the inner surface of a cylindrical channel is discussed.
ISSN:1062-0125
1573-871X
DOI:10.1007/s10891-014-1075-4