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为解决可压缩流体非稳定流动的定量计算问题,本文引进了特征线法。从60年代开始,人们就把特征线法应用于天然气管道输送的瞬变流计算,并取得了一定成果。文中讨论了火灾的数学模型,并根据分子扩散动力学原理,用特征线差分法,计算了一氧化碳在矿井中弥漫的动态过程。这一过程的分析与计算对救灾工作来说。是至关重要的,因为火灾事故的伤亡,绝大多数为
In order to solve the problem of quantitative calculation of unsteady flow of compressible fluid, this paper introduces the characteristic line method. Since the 1960s, the characteristic line method has been applied to the transient flow calculation of natural gas pipeline transportation, and some achievements have been made. The paper discusses the mathematical model of fire and calculates the dynamic process of diffusing carbon monoxide in the mine by using the characteristic line difference method according to the principle of molecular diffusion dynamics. The process of analysis and calculation of disaster relief work. It is crucial because most of the casualties in a fire accident are