植被高度对建筑微环境影响的数值模拟  

Numerical Simulation of Vegetation Height Influent to Building Microclimates

作　　者：王廷夷[1] 邹声华[1] 李孔清[1] 

机构地区：[1]湖南科技大学能源与安全工程学院,湘潭411201

出　　处：《制冷与空调（四川）》2010年第2期19-24,共6页Refrigeration and Air Conditioning

基　　金：湖南省教育厅重点科学研究项目"柔性地表对建筑自然通风潜力的影响研究"(编号:08A018)

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。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 

分 类 号：TU023[建筑科学]