Mine Gas Flow in the Porous Massif and CFD Tool

Abstract:

There is a still dangerous effect in the form of methane leakage from coal seams in areas where mining activity still continuing or took place in the past. The issue of mining gas flow is still a matter that is necessary to pay attention and try to find new ways to solve this set of phenomena, no matter if it is the mining corridors or the flow in the rock massif. The number of measures to gradually reduce risk has been taken to protect the population. Nevertheless, the current situation is generally rated as serious as those risks still remain valid. Leakage of mine gases depend on many natural and technical mining conditions. With the closure of mines and thus the end of the ventilation situation considerably worse. This paper deals with the flow of dangerous mine gas, methane, through the rock mass using numerical flow modeling using CFD program Fluent. Using CFD codes can gain insight on the phenomenon under review and the results to take appropriate measures in the form of active or passive intervention.

• Periodical: Defect and Diffusion Forum (Volume 362)
• Pages: 38-46
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.362.38
• Online since: April 2015
• Authors: Pavel Staša, Oldřich Kodym
• Keywords: CFD, Methane, Mine Gases, Numerical Simulation, Porous Massif

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