Thermophoresis of aerosol particles in the laminar boundary layer on a flat plate

The thermophoresis of aerosol particles in the laminar compressible boundary layer on a flat plate is considered theoretically. The particles are attracted by a plate colder than the gas and the dust concentration drops monotonically as the wall is approached; in the absence of Brownian diffusion a...

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Bibliographic Details
Published in:Journal of colloid and interface science 1977-01, Vol.61 (1), p.77-85
Main Author: Goren, Simon L
Format: Article
Language:English
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Summary:The thermophoresis of aerosol particles in the laminar compressible boundary layer on a flat plate is considered theoretically. The particles are attracted by a plate colder than the gas and the dust concentration drops monotonically as the wall is approached; in the absence of Brownian diffusion a nonzero concentration at the wall is found. The particles are repelled by a plate hotter than the gas and, in the absence of Brownian diffusion, the aerosol concentration profile exhibits a singularity at which the concentration rapidly approaches zero or infinity. The location of this singularity is taken to be the boundary of the dust-free layer found on heated objects.
ISSN:0021-9797
1095-7103
DOI:10.1016/0021-9797(77)90416-7