Computational fluid dynamics simulation on the longwall gob breathing

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在 longwall 矿,气压变化能扰乱在嘴和通气工作区域之间的压力平衡,导致当嘴呼吸,知道的现象。越过嘴和工作区域的嘴呼吸扳机气体流动并且可以导致在哪儿的一个条件氧在嘴的缺乏的混合或甲烷累积流进脸区域。当模特儿的计算液体动力学(CFD ) 被执行在一个流血通气面板计划在爆炸混合物的开发分析这现象和它的影响。模拟结果显示越过嘴和爆炸煤气的地区(EGZ ) 的形成除去和 ingassing 被气压变化直接影响。在甲烷地区与矿空气连接的地点, EGZ 穗可以沿着脸并且在 bleeder 条目形成。这些调查结果
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