FUNDAMENTALS OF HEAT CONDUCTION IN ANISOTROPIC MEDIA

摘要

This paper discusses mathematical and physical fundamentals of heat conduction in anisotropic media dealing with Fourier's constitutive law, symmetry of conductivity tensor, mutual geometrical relations between heat flux vector and temperature gradient directions as wel l as the thermal contact resistance in anisotropic bodies. I t presents heat conduction differential equation with an appropriate coordinate axis transformation enabling to transform anisotropic problems to isotropic ones. It gives also a short survey of the experimental methods used to determine the conductivity tensor components together with the analytica l and numerical methods applied for finding solutions of anisotropic heat conduction problems.