A numerical-analytical approach to the calculation of thermal fields with regard for the thermosensibility of the material of a medium and mixed boundary conditions

TitleA numerical-analytical approach to the calculation of thermal fields with regard for the thermosensibility of the material of a medium and mixed boundary conditions
Publication TypeJournal Article
Year of Publication2014
AuthorsZhuravchak, LM, Hrytsko, BE, Kruk, OS
Abbreviated Key TitleDopov. Nac. akad. nauk Ukr.
DOI10.15407/dopovidi2014.12.051
Issue12
SectionMechanics
Pagination51-57
Date Published12/2014
LanguageUkrainian
Abstract

We reasoned the efficiency of a combination of the indirect methods of boundary and near-boundary elements with the Kirchhoff transformation to construct a numerical-analytical solution of nonlinear three-dimensional heat conduction problems. We consider some dependence of thermophysical coefficients on the temperature and the intensity of internal sources. We built a discrete-continual model for problems with boundary conditions of the first, second, and third kinds using integral representations for the Kirchhoff transformation. The results of computation experiments are presented for the exponential and power-law dependences of the thermal conductivity on the temperature.

Keywordscalculation, thermal fields, thermosensibility
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