Abstract: The experimental investigation on the Rebuilding Project of Peacock Art Square in Kunming Expo Garden is presented in this paper. During the experiment, the local wind field is simulated, in the same time, the mean wind pressures and the RMS wind pressures on the roofs of audience area and platform, as well as the frequency of vortex sledding in the downstream of the audience area are measured. Experimental results show that, because of the influence of vortex sledding in the downstream of the cliff, the instantaneous wind pressures on the roofs are very high, the wind pressure distributions on the roofs of the audience area vary obviously in main wind direction, and the RMS wind pressures are very strong. The mean wind pressures on the roofs of platform are small, but its instantaneous wind pressures are very high.

Key words: wind field simulation, flow visualization, wind characteristics

摘要： 介绍了昆明世博园孔雀艺术广场改建工程的风洞实验。实验中模拟了当地风场，测量了观众席顶棚和舞台顶棚的平均风压和均方根风压以及观众席顶棚下游脱落涡的频率。实验结果表明，受断崖下游脱落涡的影响，各片顶棚的瞬时风压较大；观众席顶棚的风压分布在沿主风向时各片有明显变化，均方根风压较强。舞台顶棚的平均风压较小，但瞬时风压较大。

关键词: 风场模拟, 流动观察, 风特性