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结合某大型储油罐区的自然环境条件,建立了火灾烟气浓度及其随时空变化的数学模型;借助ALOFT-FT软件,揭示火灾烟气浓度弥散过程中的分岔和奇异性;利用三维多彩散点和三维矩阵技术对火灾烟气中CO,SO2和PM10的分岔和奇异性实现可视化,绘出了在下风向轴线上和地表上火灾烟气中CO,SO2和PM10浓度的弥散燕列图和弥散燕影图,为制定重大事故应急救援预案和火灾事故人员疏散提供科学的决策依据。
Combining with the natural environment conditions of a large oil storage area, a mathematical model of smoke concentration and its change with time and space was established. By means of ALOFT-FT software, the bifurcation and singularity of fire smoke concentration were revealed. Colorful scatter points and three-dimensional matrix technology to visualize the bifurcations and singularities of CO, SO2 and PM10 in fire flue gas and draw out the diffuse Yan columns of CO, SO2 and PM10 concentration in the fire flue gas on the downwind axis and on the surface Figure and Diffusion Yan shadow map for the development of major accident emergency rescue plan and fire evacuation personnel to provide a scientific basis for decision-making.