大型煤堆场防风网风洞试验研究

Wind tunnel investigation on porous fence of a large coal-pile yard

通过风洞试验,研究了秦皇岛港大型煤堆场设置防风网前后煤堆场内的平均速度分布。试验结果表明:设置防风网后,煤堆场内的平均风速显著减小,根据风向角的不同,表征平均风速减小的整体效果系数在1.3至1.7之间;防风网是一种有效降低煤堆场内风速的途径。

In this paper the mean wind speed distribution of a large coal-pile yard at Qinhuangdao harbour with and without porous fence was investigated by wind tunnel test. The results show that the porous fence can greatly reduce the magnitude of wind speed in the coal-pile yard. The reduced coefficient, which represents the quantity of wind speed reduction in the whole yard, varies from 1.3 to 1.7 corresponding to the yaw angle of the incoming wind, and the porous fence is an effective way to reduce the wind speed in coal-pile yard.