A Note on the Flow of Gases through Very Fine Tubes
- 1 July 1954
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 22 (7), 1252-1253
- https://doi.org/10.1063/1.1740344
Abstract
It is shown that Knudsen's laws of flow for rarefied gases must be modified for very fine tubes. Gas flow occurs by diffusion of molecules in the adsorbed layer on the tube walls as well as in the gas phase. When the tube dimension is comparable to the mean free path in the gas film, the two flow mechanisms become comparable in effectiveness.Keywords
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