Abstract
The problem of heat transmission by conduction and radiation through a semiinfinite optically dense medium is analyzed, with incident external radiation and with convective heat transfer taken into account. An expression for the radiant thermal flux is derived from the solution to the equation of radiation flux propagation by the method of associative asymptotic expansions. The effect of the temperature gradient at the surface on the emissivity of the body is established for the medium range of absorptivity values.
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Literature cited
Bai-Shi-i, Dynamics of a Radiating Gas [Russian translation], Izd. Mir, Moscow (1968).
M. Van-Dyke, Perturbation Methods in Fluid Mechanics [Russian translation], Izd. Mir, Moscow (1967).
E. M. Sparrow and R. D. Sess, Radiative Heat Transfer [Russian translation], Izd. énergiya, Leningrad (1971).
Additional information
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 23, No. 3, pp. 459–464, September, 1972.
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Konakov, Y.P. Radiative-conductive transmission of heat through optically dense media. Journal of Engineering Physics 23, 1127–1131 (1972). https://doi.org/10.1007/BF00832224
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DOI: https://doi.org/10.1007/BF00832224