【摘要】 建立了地铁火灾中烟气运动的物理模型和数学模型,采用CFD方法模拟了地铁火灾时的温度场和烟气浓度分布。分析比较了地铁列车中部和头部分别发生火灾情况下有、无屏蔽门时烟气的扩散规律。模拟结果表明屏蔽门对于火灾烟气的扩散有显著的抑制作用。更多还原

【Abstract】 Establishes the physical model and mathematical model of fire smoke diffusion in underground railway. Simulates the temperature field and concentration distribution of fire smoke using CFD method. Analyses and compares the diffusion regularity of fire smoke with and without screen doors when fire occurs in the middle or head of the train separately. The simulation result indicates that screen doors play a remarkable role in restricting the diffusion of fire smoke.更多还原