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根据近距离煤层采空区渗流及扩散数学模型,利用东荣二矿近距离煤层采空区的特征,对该近距离煤层采空区作出了相应的假设,并利用近距离煤层工作面的现场观测数据,进行数据拟合,得出了相应的函数方程,建立了近距离煤层采空区自然发火预测模型.利用CFD软件FLUENT6.0进行解算,得出了近距离煤层采空区氧浓度变化值、速度变化值、压力变化值等结果,与实际相符.图2,参8.
According to the mathematical model of percolation and diffusion in the short distance coal mined area, taking the characteristics of the mined-out area of the close coal seam in Dongrong No.2 mine to make corresponding assumptions about the mined-out area of the short-distance coal seam, Observation data and data fitting, the corresponding function equations are obtained, and the prediction model of spontaneous combustion in goaf with short distance coal seam is established.Using CFD software FLUENT6.0 to solve the problem, the oxygen concentration Change value, speed change value, pressure change value and other results, in line with the actual.