The invention discloses a multi-dimensional
coupling method for calculating mine whole wind network outburst
shock wave propagation characteristics. The multi-dimensional
coupling method comprises outburst source near source roadway FLUENT multi-dimensional calculation, far source roadway Flowmaster one-dimensional calculation and an MPCCI multi-dimensional
coupling calculation method. Aiming at the characteristics of impinging
airflow around the prominent source roadway, a two-phase flow model of pulverized
coal gas and
solid gas is established. By utilizing FLUENT calculation
simulation, attenuation characteristics and attenuation factors of outburst shock
waves under different roadway types are obtained. On the basis of the conclusion, one-dimensional simplification is performed on a far-source tunnel
branch, an equivalent pressure loss and an outburst pressure source equivalent
attenuation curve of a tunnel structure are determined, and propagation characteristics of outburst shockwaves of the far-source tunnel are calculated by means of Flowmaster
software. MPCCI
software is further adopted for coupling and solving the outburst shock
waves in an outburst source near-source tunnel (FLUENT multi-dimensional calculation model); and highlighting a Flowmaster one-dimensional calculation model and the variation trend of the
impact pressure at the coupling surface, thereby obtaining the propagation characteristics of the highlighted shock
waves in the whole underground air network. Through the method, the propagation characteristics of the outburst shock waves in the mine whole wind network can be efficiently and accurately calculated.