Abstract
An approximate solution is obtained for a stationary problem of mass transfer between a moving solid spherical particle and a laminar gas flow at low finite Peclet and Reynolds numbers. The case of a chemical surface reaction which depends arbitrarily on reagent concentration at the particle surface is considered. The results obtained may be used, in particular, to determine the rate of mass transfer between a particle and a flow for the integral- and fractional-order reactions. The solution of the problem has been found by the method of matching outer and inner asymptotic expansions in the Peclet number. The concentration field has been determined. The dependence of the total reagent flow at the particle surface on the reaction kinetics, rate constant and the Peclet number has been obtained.
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