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A note on the heat transfer to nonspherical particles from plasma

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2 Author(s)
Li Ming ; Chinese Acad. of Sci., Beijing, China ; Chen Yunming

Heat transfer from plasma to a nonspherical particle in the free-molecular regime is studied in the present paper under thin plasma sheath condition. Analytical expressions for the floating potential charge and heat fluxes of an ellipsoid particle of revolution are derived and curves are given for hey parameters for arbitrary plasma flow direction. On the basis of these results, an equivalent sphere with the same surface area as the nonspherical particle is suggested to be used for calculating the total heat flux of nonspherical particle in engineering application with acceptable accuracy. Furthermore, the effects of particle rotation, which occurs in most aerosol systems, on the heat transfer are also discussed

Published in:

IEEE Transactions on Plasma Science  (Volume:22 ,  Issue: 4 )