建筑物绕流风能利用——集流构筑物集流效应的模拟研究

Wind Energy Utilization of the Flow Around Buildings: Simulation Study of the Concentration Effect of Structure for Concentrating Flow

采用标准κ-ε模型,利用Fluent软件对典型单体建筑物绕流风环境进行了数值模拟.根据建筑周围风环境特性,在建筑物顶部构造一种集流构筑物,并将其与建筑物相结合.采用数值模拟方法分析了其风速场和风能密度场,比较了几种不同几何形状的集流构筑物的风能集流效果,并得到了最优的集流构筑物型式,为建筑物风能利用提供了一种新的形式和依据.

In this paper, the Fluent software was adopted to simulate the flow around the single typical buildings bY means of the standard model. According to the characteristics of the wind environment around the building, a structure for concentrating flow at the top of the building is established and combined with the building. The numerical method is used to accomplish the analysis of the wind speed field and wind energy density. The research compared effects of some different types of structure for concentrating flow. The optimal structure for concentrating flow was obtained, which provided a reference for contributing to utilize the building wind energy.