矿内空气非定常流动数值模拟分析

建立井巷内空气非定常流动能量方程和通风网络中非定常流的数学模型。根据该模型可以模拟出矿井通风系统内非稳态下任意时刻、任意位置的风压和通过风量。分析了由进风井提升容器升降、矿车运行等扰动源引起风流脉动时巷道空气压力和风量变化规律。在扰动源有规律地扰动过程中，所引起的巷道空气压力和风量变化可视为周期振荡。

Computer Simulation of Unsteady Airflow Processes in Mine Venilation Networks

A unsteady airflow energy equation in an airway and a mathematical model of unsteady airflow in ventilation network are established.This model can calculate air pressure and quantity at any time in any position in mine ventilation systems.Variation of air pressure and quantity in an airway is analyzed when pulse airflow is induced by disturbances such as hoisting in downcast drafts and conveying in haulage drifts.When periodic pulse airflow is induced by disturbances the variation of air pressure and quantity in an airway can be considered periodic oscillation.