CALCULATION OF DISTRIBUTION OF TEMPERATURE ALONG THE CORE AT NON-STATIONARY HEAT EXCHANGE USING THE METHOD OF LOCAL THERMAL FLOWS

Statement of the problem. Engineering practice has to deal with the problems of non-stationary heat exchange in flat elements of building structures, however, the methods of its calculation are not sufficiently developed.Results. An engineering method for calculating a non-stationary temperature field in a core heat-insulated from the sides was proposed, based on local application of physical and mathematical models of non-stationary heat exchange on the core. The expression was obtained for the calcula-tion of a constant of time which all of the calculation formulas include. Using a constant of time, the upper boundary for each step in time was established.Conclusions. The developed calculation techniques are applicable for non-uniform cores. The method to be further described is applicable and for calculation of distribution of temperature on a thickness of flat elements of the building designs, which cross-section sizes much more a thickness.