ON SOME EXPLICIT APPROXIMATE SOLUTIONS OF THE MAXWELL-STEFAN EQUATIONS FOR THE MULTICOMPONENT FILM MODEL

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Abstract
An explicit approximate solution of the Maxwell-Stefan equations, which describe mass transfer in multi-componcnt gas mixtures, for a film model is developed as a generalisation of a method by Burghardt and Krupiczka for diffusion through a mixture of stagnant gases. The consistent approach to explicit approximations described here also leads to the earlier general method of Krishna. Numerical examples demonstrate the superiority of the new approximation in problems involving mass transfer at high rates.