城市风的脉动特性对建筑通风效果的影响

摘要

通过对作用在深圳市某办公建筑室内边界的自然脉动风进行的连续测试,对脉动周期和脉动强度的统计值进行分析研究。同时对由脉动风引起的CO2浓度变化进行记录,结合脉动风速的变化规律,讨论了城市风的脉动特性对建筑通风效果的影响。基于不同开窗位置的通风效果比较,提出关于建筑自然通风设计中考虑城市脉动风的波动性的必要性。%Consecutive observation of natural wind imposed on Shenzhen Institute of Building Research Mansion was performed,the turbulent cycle and turbulent intensity were summarized based on amount of measured data.At the same time concentration of CO2 changed with the natural wind was also recorded,combined with the change of pulse wind speed rule,the characteristics of effected on the city the pulsation of the building ventilation was discussed.Based on the comparison between different effects on different position of the window,considering the volatility of natural wind in city is a necessity when designing the building ventilation.