NUMERICAL MODELING OF THE COAL-AND-GAS OUTBURST GASDYNAMICS

摘要

The article discusses the problem of coal outbursts into mined-out space based on the nonstationary and nonequilibrium velocity and temperature approach of the mechanics of inhomogeneous media, presents the math models with and without taking account of intergranular pressure of solid particles, and compares the new assessment with the available calculation and experimental references. Based on the analysis of the mixture flow behavior, the authors have found some rules in the relationships of depression waves, shock waves, initial concentration and diameter of particles in coal-and-gas mixtures.