任意风向时的线源扩散模式研究

Study on Line-Source Model for Any Wind-road Orientation Angles

给出了一个适用于风向与公路成任意夹角的有限长线源的扩散模式;讨论了不同风向、线源长度等,对线源中心下风距离的污染物地面浓度的影响;并将这个模式与CALINE-2模式和风洞试验结果进行了比较。

A simple finite line source diffusion model which may be applied to any wind-road orientation angles and variable height of roadways was presented. Influence on, the concentration of downwind distances by the wind orientation and length of line source was discussed. The results obtained from numerical integration model were compared with Caline-2 model and wind tunnel experimental data.