文章详细信息 关键词： 建筑间距;k-ε模型;污染物浓度场 [gap=867]Keywords: space between buildings; k-ε model; pollutant concentration field
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分析包括两个部分：1流场速度、水面高度的计算；2根据扩散模型计算污染物浓度场。
The analysis is divided into two parts: 1 computation of the velocity flow field and water surface elevation, and 2 computation of the pollutant concentration field from the dispersion model.
②对中尺度城市的流场进行处理，使之用于扩散模型后更能准确反应污染物的浓度分布；
To dispose of the flow field of mesoscale cities, in order to make the diffusion model be used to exactly calculate the concentration distribution of the pollutants;
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