ABOUT CHANGES IN AERODYNAMIC RESISTANCE OF MINE VENTILATION NETWORK WHEN REVERSING THE AIR FLOW
S. A. Pavlov
Chinakal Institute of Mining, Siberian Branch Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Реверсивный режим, рудник, местные аэродинамические сопротивления, стационарное возду-хораспределение, рудничная вентиляция, Reversing mode, mine, local aerodynamic resistances, stationary air distribution, mine ventilation
Abstract
The study results of changes in the value of local aerodynamic resistances during the air flow reversing are presented. Based on the finite volume method, the aerodynamic drag factors of typical elements of shaft and mine ventilation network are calculated. A comparative assessment of the obtained values with analytical calculations is given. The mutual influence of local aerodynamic resistances closely located in the ventilation network under normal and reversing ventilation conditions is determined.
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