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本文介绍1∶200体育场缩尺模型风环境特性低速风洞实验研究。文中给出了自由来流在不同速度和各种风向条件下运动场上离地6毫米高(模拟全尺寸体育场风速测量装置距运动场地面1.22米高度)的风速和风向分布,测量结果表明,运动场上风向一般与来流风向不一致。风速测量表明,运动场上风速通常是在自由来流速度的1/3以内。研究结果说明,体育场内气流湍流度对风环境特性有很大影响。
This article describes the 1: 200 stadium scale model wind environment characteristics of low-speed wind tunnel experimental study. The paper gives the distribution of wind speed and wind direction of free flow at 6mm above the ground in the stadium with different speed and wind direction (the full-scale stadium wind speed measuring device is 1.22m above the ground). The results show that on the sports field The general direction of the wind and the flow of inconsistencies. Wind speed measurements show that the speed of the field is usually within one-third of the free-flow rate. The results show that the degree of turbulence in the stadium has a great influence on the wind environment characteristics.