摘要
通过风洞实验研究了北京体育中心游泳馆曲面形状的屋顶在各种不同风向角下的平均风压分布。实验结果表明:在一定风向角下,屋檐附近或屋脊上的局部区域出现的平均风压系数在均匀气流和大气边界层气流中可分别达-3.0和-2.0以上。
This paper presents the results of the wind-tunnel studyof the mean wind pressure distributions on the curved roof of SwimmingStadium in Beijing Sports Center under various wind directions.Thetests were carried out both in smooth flow and in atmosphere boundarylayer (ABL) flow.The results show that in some eases,strong suctionswere found downstream of the upwind roof edges and roof ridge,withvalue of pressure coefficient as high as-3.0 or-2.0 in smooth flowand ABL flow respectively.
关键词
曲面屋顶
风压分布
大气边界层
curved roof
wind pressure distribution
atmosphere boundary layer
