矿井正常和灾变时期通风网络解算的数学模型

将矿井通风网络中的空气流动作为一维可压缩流体的非定常流动，建立了矿井正常和灾变时期通风网络解算的统一数学模型。在同一实例中，通过与文献所提供结果的比较对模型进行了测试。采用该模型可以模拟出矿井正常通风期间风流定常流动状态、不可压缩风流非定常流动状态和可压缩风流非定常流动状态。结合算例模拟了矿井正常通风和火灾时期风流状态的连续变化过程。

Mathematical model for solving ventilation networks during conventional ventilation and emergency conditions

The airflow of mine ventilation networks is seen as one-dimensional unsteady flow, and a unified mathematical model on ventilation network calculation is proposed during the periods of normal ventilation and emergency conditions. This model, which can simulate the states of steady flow and unsteady flow of compressible and incompressible air in the period of normal ventilation, is validated by comparison with the results of the literature in the same example. Continuous variable process of flow states in the periods of normal ventilation and emergency conditions is simulated in the case.