Methodological features of the description of thermal conductivity processes

Abstract

In the physical model, the role of the velocity at which energy propagates in a continuous medium is analyzed in the process of thermal conductivity. Based on the general definition of the energy density vector, the basic definition of the heat flux density vector is given and a formula is derived for determining the volumetric energy density transferred due to thermal conductivity. For the general case, a formula is derived for calculating the distribution of the local surface heat flux density on an arbitrary surface belonging to a body with a known field of the heat flux density vector.