nonstationary heat conductivity

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Determination of the Wall Temperature Change for a Cavity in a Solid as a Result of the Temperature Change of the Gas Flow in a Cavity

Authors: Dudar E. S., Dudar O. I.

The wall temperature change for a cylindrical cavity in a solid was found as a response to the temperature change of the gas flowing in a cavity. Three important special cases of the gas temperature dependence on time are considered: temperature is constant;

temperature changes according to the linear law; temperature changes according to the harmonic law. The plots of five «µ-functions» used to denote solutions are submitted. The plots are obtained by the means of the numerical integration of the Gauss quadrature

The heat conductivity in the infinite solid of the convection in a cylindrical cavity

Authors: Dudar E. S., Dudar O. I., Osipenko M. A.

The problem of heat conductivity in the infinite solid from gas moving in a cylindrical cavity is solved by the combination of the Green function method and the Laplace transformation.