Numerical simulation of methane delivery law in U type ventilation work face gob

摘要

The engineering background of this paper is the upper protecting seams exploitation of Huangsha Mine, By use of CFD software to analyze the methane delivery law in U type ventilation work face gob. By analyzing the density distribution, pressure distribution, velocity field and mash methane concentration of air-methane mixed gas, obtained the locations of gas drainage hole, and summed up the methane delivery law in U type ventilation work face gob.