中文摘要：

针对采空区煤炭容易发生自燃问题,且采空区发火危险区域尚不明晰,通过对采空区内气体监测以及建立采空区流场和温度场耦合数学模型,采用该模型对采空区自然发火数值模拟,判断出发火危险区域位置,从而对煤炭安全高效生产起到良好的指导作用。

英文摘要：

Coal spontaneous combustion normally occurs at goaf area in a coal mine.It is difficult to identify the spontaneous combustion area in goaf.This study establishes a mathematical model on air flow field and temperature field in goaf.Through the gas monitoring and the numerical simulation of coal spontaneous combustion in goaf,the area of coal spontaneous combustion in goaf can be identified.Therefore the model provides a good guidance for safe and efficient spontaneous combustion control.