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With three units of laboratory equipment (jaw and roller crushers, as well as rotary ore divider) operating simultaneously, numerical modeling research was performed to examine the effect of dust emission area on air pollution in a laboratory crushing room. The modeling was performed in a three-dimensional setting using the COMSOL program. The room ventilation process was modelled based on a previously developed two-stage methodological approach: calculation of aerodynamic parameters in the incompressible fluid ap...

The results of numerical simulation of the accumulation of nitrogen oxides in the deadend and main workings during the operation of the mucking and flitting device at the stages of loading and auxiliary operations are presented. The process of accumulation of nitrogen oxides is modeled on the basis of a previously developed two-stage methodological approach: the 1st stage is the calculation of aerodynamic parameters with applying a standard (?? ? ??)-model turbulence and the 2nd stage is the solution of the convec...