HEAT CONDUCTION AND DIFFUSION EQUATION OF STEAM IN SNOW COVER

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Abstract

Usually, the temperature gradient in snow cover is many times over the critical value above which convective motion of air confined in snow pores begins. These motions strongly affect the rate of heat and mass transfer processes in the snow cover. Analytical formulas that express the dependence of the generalized heat‐conduction and diffusion equations of steam in snow on the Peclet number are obtained. A reason has been elucidated due to which, in most cases, the value of the diffusion coefficient of steam in snow cover is higher than its value in air.

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