Modelling of computational fluid dynamics of gas dynamic processes on longwall panel during underground mining of flat gassy coal multi-seam

In the paper, results of numerical modeling with use of a method of computational fluid dynamics of aerogasdynamic processes on the longwall panel of the coal mines during mining flat gassy coal multi-seam are presented. The three-dimensional aerogasdynamic model of the longwall panel developed by the authors is presented. Numerical research is conducted for conditions of flat thick seam mining in mine V.D. Yalevsky. As a result of research, the low efficiency of use of the vertical drainage goaf wells located from the headgate is established and recommendations about decrease in the number of wells for reduction of cost of their drilling are made. Results of the research can be used for justification of ventilation and gas drainage during gassy multi-seam underground mining.