住宅建筑中庭内自然通风的数值模拟

Numerical Simulation of Natural Ventilation in Atrium of Residential Building

为了研究自然通风对住宅建筑中庭内环境以及住户的影响,以南向水平进入中庭的室外气流为研究对象,在夏季气候条件下,应用RNG κ-ε湍流模型,对中庭内热环境和风环境用数值方法进行了模拟,并结合自然通风原理对计算结果进行了分析。研究表明,中庭外窗的充分开启,使得中庭内有较好的热环境和令人满意的风场,既提高了住户居住的舒适性环境,又达到了建筑节能的效果。

In order to study the effects of the natural ventilation on the inside environment of the atrium and inhabitants in residential buildings, thermal and wind environments in the atrium are simulated by numerical methods, with RNG κ-ε turbulent model under the summer climates, to obtain the extraventricular airflow entering the atrium from south and to analyze the results combined with theory of natural ventilation. The study indicates the preferable thermal environment and satisfactory wind field in the atrium when the windows of the atrium are fully open, which improves the comfort of the residential environment as well as saves building energy.