Numerical Simulation on Air Distribution in Mining Goaf with One Intake and Two Air Returning Y Type Ventilation
Abstract：In order to master the air distribution law of goaf with Y type ventilation, according to the site actual condition, a physicalmod-el of goal with one intake and two air retuning Y type ventilation was established. The Fluent software was applied to the numerical simula-tion study on the air leakage flow field of goaf with one intake and two returning Y type ventilation, the air leakage quantity and the gas concentration distribution. The results showed that with the lower corner distance increased, the air leakage from the coal mining face to the goal would reduce and the air leakage quantity near the upper corner would seriously increase. Along the length of the goaf, the gas concentration would be higher when more closely to the goaf in deep mine. Along the direction of the coal mining face, the gas concentra-tion near the side of the transportation gateway would be low and the gas concentration near the side of the goaf would be high.
Keywords：Y type ventilationair in the goalair leakage valuegas concentrationnumerical simulation
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 36-38,41 )