Computational fluid dynamics modeling of underground coal longwall gob ventilation systems using a developed meshing approach
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Mining accidents related to ventilation problems that often occur deep within a mine are costly events in terms of production loss, equipment loss, public relations, and ultimately, the cost of human lives. Although the mining process has become safer over the years through mechanical extraction, the operation still requires human control, monitoring, and repair at or near the mining face. Larger operations use the longwall mining process to extract coal by cutting a 3 to 4 foot wide swath out of a long, continuous block of coal. During the operation, the extraction face is ventilated where ...