武汉体育中心体育场内场风环境定量测量

Experimental study of the wind field inside an athletic museum

采用一种新型水平速度传感器,测量体育场内场水平风速,同时用烟线示踪粒子显示方法,同步辨别了传感器所处位置的风向。通过图像处理,获得体育场在不同的风向条件下内场各测点的水平速度矢量,并给出了变化的速度场水平方向瞬时流线,对该体育场在风作用下内场风场的品质作出预报。

In this paper described the measurements results of the near ground wind field inside an athletic museum model obtained in the atmospheric boundary layer wind tunnel. Various aerodynamic means such as hotwire anmenometer…, smoke trace visualization technique and emni-directional sensor, were used to investigate the wind field variations inside the athletic museum under different wind conditions (direction and velocities) outside the museum. Predictions have been made of the wind influence for the athletic museum as it is actually utilized. Such experimental study may greatly reduce the potential risk of the intolerable wind effects on the sporting activities and meantime some remedies can also be recommended through such aerodynamic studies.