Model Problem of Thermodiffusion of Admixture Particles in Aircraft Materials

The model problem of thermodiffusion of admixture particles in the material, from which the aircraft covering is fabricated, is considered during a flight of an airplane, which is accompanied by significant temperature variations due to altitude changes. On this basis, the coupled processes of heat conduction and diffusion of admixture substances are investigated. The solution of the problem is constructed on the basis of Duhamel's theorem. Relations for quantitative and qualitative assessment of the concentration of the admixture substance in the material, its temperature, flow and the quantity of particles that has passed through the layer in a certain time were obtained.