不同植被高度对大气参数的影响研究

Numerical Simulation of Vegetation Height Influent to Building Microclimates

植物通过蒸腾作用,与周围大气不断进行着物质与能量交换,导致近地表大气参数发生变化。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。不同的植被条件会对大气的温度、速度等参数的分布产生不同的影响。提出了把建筑室内外热环境耦合的方法,利用流体力学计算软件CFD,初步分析了不同植被高度对大气参数的影响规律,为深入研究工作提供指导。

Plants exchange material and energy with the surrounding atmosphere through transpiration, which made the atmospheric parameters near surface changed. Vegetation can reflect and shaded solar radiation that induced accommodation upgraded to the level of leaf. Different vegetation conditions will have different effects to the distribution of atmosphere, temperature, speed and other parameters. This paper based on the coupling method of indoor and outdoor thermal environment and the technology of CFD, analyzing the effect laws of different vegetation lever to the near atmospheric parameters, and providing guidance for in-depth research.