| 凹坑地形风流结构对污染物散布的模拟研究 |
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| 引用本文： | 刘红年,蒋维楣.凹坑地形风流结构对污染物散布的模拟研究[J].大气科学,1999,23(1):34-38. |
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| 作者姓名： | 刘红年 蒋维楣 |
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| 作者单位： | 南京大学大气科学系,南京 210093 |
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| 摘 要： | 利用建立的三维非静力高分辨率高阶湍流闭合模式与随机游动扩散模式研究了一个深凹露天矿区污染物散布的规律，同时在风洞中进行了示踪实验。结果表明，由于凹坑内复环流结构的存在，使得坑内污染物浓度较大，且浓度最大值出现在源的上风侧。数值试验与风洞试验结果吻合较好。
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| 关 键 词： | 复杂地形 非静力高阶闭合 扩散模式 风洞模拟 |
Simulation Research on the Influence between the Air Flow Structure and Air Pollutant Diffusion in the Open-Pit Terrain |
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| Liu Hongnian and Jiang Weimei.Simulation Research on the Influence between the Air Flow Structure and Air Pollutant Diffusion in the Open-Pit Terrain[J].Chinese Journal of Atmospheric Sciences,1999,23(1):34-38. |
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| Authors: | Liu Hongnian and Jiang Weimei |
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| Abstract: | A 3-d non-hydrostatic higher-order turbulence closure numerical model and a random walk method were used to study the characteristics of flow field and pollutant dispersion Meanwhile, the tracer dispersion experiments were conducted in wind tunnel The results of wind tunnel experiments are in good accordance with those of numerical simulations Results show that the pollutant concentration in an open pit is substantially higher than that at the fringe The maximum value is centered upwind the location of the source |
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| Keywords: | complex terrain non-hydrostatic higher-order turbulence closure model dispersion model fluid modeling in wind tunnel |
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