矿井火灾时期,正确判断火灾及网路的风流状态,了解火灾时期风流非稳定过程的通风原理,对提高矿井火灾的救灾能力与效果具有重要意义。本文根据矿井火灾时期的火灾燃烧规律及网路风流流动特征,建立了矿井火灾燃烧数学模型及风流非稳定流动方程组,给出了解算方法,编制了用于模拟矿井火灾燃烧过程及其风流非稳定流动过程的计算机软件,大大提高了矿井火灾时期通风网路解算的精度。 During the period of mine fire, it is of great significance to correctly judge the state of fire and the wind flow of the network, to understand the ventilation principle of the unsteady process of wind flow in the fire period, and to improve the disaster relief capability and effect of the mine fire. In this paper, according to the law of fire combustion during mine fire and the characteristics of wind flow in the network, a mathematical model of combustion and unsteady flow equations are established. The solution method is given, and the method for simulating mine fire combustion and its flow Computer software to stabilize the flow process greatly improves the accuracy of the ventilation network solution during the mine fire.