传统窨子屋民居自然通风效果影响机理研究  

Analysis on Influencing Mechanism of Natural Ventilation in Vernacular Yinzi Dwellings

作　　者：刘盛[1,2] 刘益明 黄春华[1] 

机构地区：[1]湖南工业大学建筑与城乡规划学院,湖南株洲412007 [2]奥克兰大学建筑与规划学院 [3]湖南工业大学包装设计艺术学院,湖南株洲412007

出　　处：《建筑科学》2017年第10期128-133,148,共7页Building Science

基　　金：湖南省社会科学基金项目"城市化进程中永州传统村落传承保护研究"(15YBA130);国家科技支撑计划项目"长株潭两型社会农村社区建设技术集成与示范"(2013BAJ10B14)

摘　　要：对于处于高密度环境的城镇传统民居而言,天井和院落的尺度对于其室内自然通风效果和热舒适度有着关键的影响。研究对象为位于湘西洪江高密度城镇区域内的传统窨子屋民居,为了探究其独特的深天井自然通风效果的影响机理,本文基于计算流体力学(CFD)的方法,首先通过风环境实测验证模拟精确度,然后结合数值模拟软件对在自然通风状态下的窨子屋风环境进行对比分析,探讨三类典型窨子屋民居的自然通风效果与天井几何形态、通风口的关系,定量地归纳出天井几何形态特征、增设通风口等因素与室内自然通风效果之间的影响机理,可作为今后当地窨子屋民居保护与更新中的设计参考。Courtyard and patio geometry are crucial to efficient natural ventilation and indoor thermal comfort in a compact urban environment. In this paper, the natural ventilation influencing mechanism of traditional Yinzi dwellings in a compact urban area is chosen as the research objects. Firstly, the wind environment test of a Yinzi dwelling was conducted to verify accuracy of airflow simulation; then a comparison between different geometries of patios and different ventilation vent in terms of wind flow characteristics and indoor air speed was performed based on the validation of Computational Fluid Dynamics （CFD） simulations. Specifically, the influencing mechanism between geometries of patios, ventilation vent and ventilation performance of typical traditional Yinzi dwellings are analyzed. Conclusions from the study can be used as design recommendations for future upgrading and preservation of such dwellings in compact urban area.

关 键 词：窨子屋 自然通风 天井 数值模拟 

分 类 号：TU834.1[建筑科学—供热、供燃气、通风及空调工程]