技术中心

【摘要】 植物通过蒸腾作用,与周围大气不断进行着热湿交换,从而调节大气的温、湿度分布。植被对太阳辐射的反射和遮挡作用,使得调节作用提升到叶面高度附近。植被的高度、覆盖率、覆盖面积都会对空气的温、湿度分布产生不同的影响。利用流体力学计算软件,提出了把建筑室内外热环境耦合,将植被区域视为多孔介质的方法,初步分析了不同高度植被对建筑微环境的空气温度及热量交换的影响规律,旨在探究各种植被条件对建筑微环境的影响。 【Abstract】 Through transpiration,the vegetation exchange energy and heat and moisture,and then regulate the distributing of the temperature and humidity.Through the reflecting and shading effect,the regulatory effect advance to the height of the leaf surface.The height,coverage rate and covered areas have a different effect on the distributing of the temperature and humidity.This paper uses the fluent compute software,lodges the method of coupling the out and inside of the buildings,and then sets the vegetation to porous jump,analyses the rules of the influence about vegetation with different height to building microclimate,and aim to explore the influence of various vegetation conditions to building microclimates. 【关键词】 植被高度; 温度分布; 热量交换 【Key words】 vegetation height; temperature distribution; heat exchange