SIMULATED EFFECTIVE THERMAL CONDUCTIVITY OF SINTERED, RANDOMLY PACKED SPHERES AND STATISTICAL STRUCTURES OF PACKINGS

摘要

Effective thermal conductivity of sintered sperical particles is estimated by a computer simulation. The simulation consists of (i) simulated random packing of equal spheres by a method of "rigid sphere free fall into a virtual box," (ii) finite element method (FEM) estimation of the thermla resistance of a "sintered" pair of spheres, and (iii) simulated heat conduction tests of a "random network," as a model of sintered particles, of thermal resistors with the estimated resitance; these tests yield the effective ocnductivity of sintered spehrical particle aggregates.