论文部分内容阅读
为了了解矿井火灾情形下火灾烟流的蔓延路线和时间,进行了火灾时期矿井通风系统的非稳态计算分析和探讨。基于流体力学、热力学、传热、传质学和燃烧理论的分析,由矿井通风系统中影响风流流动的状态变量建立质量守恒、动量守恒、能量守恒等几组微分方程组,对火灾时期相关热处理问题进行了分析和模型建立,利用时间间隔法的思想进行程序设计,并基于实例矿井进行了火灾时期矿井通风系统的非稳态分析和计算。
In order to know the route and time of the fire smoke flow in the case of mine fire, the unsteady calculation and analysis of the mine ventilation system during the fire period were carried out. Based on the analysis of fluid mechanics, thermodynamics, heat transfer, mass transfer and combustion theory, several differential equations including conservation of mass, conservation of momentum and conservation of energy are established by state variables that affect the flow of wind in mine ventilation system. The problems were analyzed and the model was established. The method of time interval method was used to design the program. Based on the example mine, the unsteady analysis and calculation of mine ventilation system during the fire period were carried out.