空间形态指标对于板式街区通风的适用性分析  

STUDY ON THE APPLICABILITY OF SPATIAL MORPHOLOGY INDICATORS FOR SLAB-TYPE BLOCK VENTILATION

作　　者：甘月朗 陈宏[2] GAN Yuelang;CHEN Hong

机构地区：[1]华中科技大学建筑与城市规划学院,湖北省城镇化工程技术研究中心 [2]华中科技大学建筑与城市规划学院

出　　处：《城市规划》2018年第12期97-108,共12页City Planning Review

基　　金：国家自然科学基金重点项目(51538004)资助.

摘　　要：良好的风环境有助于缓解城市热岛现象,促进空气污染物扩散。在城市设计中,需要一套指标用于引导相应片区的空间形态设计以获取良好风环境。这套指标既要清晰表征片区空间形态的变化,又要较准确预测由此引发的风环境变化。目前该方向的研究相对不足。本文以板式街区形态与风环境的变化关系为研究入手点,选取7套空间形态指标,进行空间形态指标数值改变量与平均风速数值改变量的相关性分析,提出可以利用"孔隙率"与"有效皱褶率"作为板式街区空间形态设计中风环境控制的引导性指标。Good urban wind environment is helpful for the alleviation of urban heat island phenomenon and the promotion of air pollutants diffusion.A set of indicators is needed to guide the spatial morphology design of corresponding areas to obtain a good wind environment.These indicators should not only clearly describe the change of spatial morphology in indicated area,but also accurately predict the change of the wind environment aroused by the former,to which related studies are lacked. This paper selects the relationship between the slab-type block form and'the wind environment as the study starting point,and chooses 7 groups of urban spatial morphology indicators to analyze the correlation between the numerical change of spatial morphological indicators and the numerical change of ventilation condition,before putting forward the suggestion that "porosity"and "effective rugosity" can be used as the guiding indicators for wind environment control in'spatial morphology design of slab-type blocks.

关 键 词：空间形态指标 街区通风 CFD 相关性分析 

分 类 号：TU984.113[建筑科学—城市规划与设计] X16[环境科学与工程—环境科学]