A solution is found for the unsteady problem of heat transfer between a dense slab of disperse material and an object within this slab for the case of boundary conditions of the fourth kind. The calculated results are compared with experiment.
The solution of a set of differential equations for unsteady heat conduction of a disperse medium is analyzed and a comparison is presented with experimental data from several authors.
An attempt is made quantitatively to estimate the feasibility of applying the working differential equation for a continuous medium to a disperse system.
The system of differential equations of heat conduction of a dispersed medium is replaced by the system of differential equations of an electrical circuit; the simulation conditions are examined.
A system of differential equations is proposed for the description of unsteady heat conduction in disperse systems. A solution is derived for boundary conditions of the 1st, 2nd, and 3rd kind.
Results are described of investigations of local and average heat transfer between a single sphere and an airstream at normal and reduced pressures in the Reynolds number range 50 to 97·103.