COMPUTATIONAL FLUID DYNAMICS STUDY OF VENTILATION FLOW PATHS ON LONGWALL PANEL

The main objective of researches is studying of ventilation flow path on longwall panel taking into account influence various geological and mining factors. The results of computational fluid dynamics study with use of three-dimensional models of longwall panel are presented in the paper. As the result of numerical analysis recommendations about ensuring effective ventilation in initial the period of longwall mining until the first collapse of the main roof are made. The novelty of the received results consists in establishment of influence of the broken-down rock in the goaf on the ventilation flow path and efficiency of ventilation of a longwall face.