Gas flow near a smooth plate

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TR Number

Date

2011-05-31

Journal Title

Journal ISSN

Volume Title

Publisher

American Physical Society

Abstract

We examine gas flow adjacent to a molecularly smooth, solid, muscovite mica. The fluctuations in force acting on a glass sphere as a function of proximity to a mica plate were measured in air and were used to obtain the damping. The damping was interpreted as a lubrication force. The measured damping as a function of separation in the slip-flow regime corresponds to a slip length of 480 +/- 70 nm, which is equivalent to highly specular gas molecule collisions. A slip-flow model fits the data for separations as small as one mean free path.

Description

Keywords

Slip boundary-condition, Accommodation coefficients, Film lubrication, Carbon nanotubes, Microchannels, Force, Air, Physics

Citation

Bowles, Adam P. ; Ducker, William A., May 31, 2011. "Gas flow near a smooth plate," PHYSICAL REVIEW E 83(5) Part 2: 056328. DOI: 10.1103/PhysRevE.83.056328.