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以大连一个16km~2范围的多高层混合高密度城市区域为例,通过CFD数值实验研究了城市规划指标对风环境的影响。将该区域中心的1km~2范围划分为200m×200m的方格网,获取了不同风速情境下共250组风速数据,利用SPSS对每个方格网内城市规划指标(建筑密度、容积率、绿地率)与风速比之间的定量关系进行回归分析,为定量分析城市规划指标和风环境之间的关系提供了一种思路,为创造良好城市环境提供了科学依据。
Taking a multi-high-density mixed urban area of 16km ~ 2 in Dalian as an example, the influence of urban planning indexes on wind environment was studied by CFD numerical experiments. Divided the 1km ~ 2 range of the center into 200m × 200m grids, and obtained 250 sets of wind speed data under different wind speed scenarios. Using SPSS, the urban planning indexes (such as building density, floor area ratio, Regression analysis of the quantitative relationship between wind speed ratio and wind speed ratio provides a train of thought for quantitative analysis of the relationship between urban planning index and wind environment and provides a scientific basis for creating a good urban environment.