The distribution of particles in a shock-induced boundary layer of a dusty gas over a solid surface |
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Authors: | Wang Boyi S L Veselyi V A Kulikovskii A N Osiptsov |
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Affiliation: | (1) Institute of Mechanics, Academia Sinica, Beijing, China;(2) Institute of Mechanics, Moscow State University, Moscow, USSR |
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Abstract: | The laminar boundary layer behind a constant-speed shock wave moving through a dusty gas along a solid surface is studied.
The Saffman lift force acting on a spherical particle in a gas boundary layer is taken into account. A method for calculating
the density profile of dispersed phase near the wall is proposed and some numerical results are given. It is shown that behind
the shock wave, there exists a curved thin layer where the density of particles is many times higher than the original one.
This dust collection effect may be of essential importance to the problem of dust explosion in industry. |
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Keywords: | dusty-gas boundary layer distribution of particles Saffman lift force |
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