通风节能视角中多尺度的风环境评估方法研究——以深圳后海中心区为例  

A Study of the Multi-Scale Wind Environment Assessment Method from the Perspective of Ventilation and Energy Conservation:Taking the Houhai Central District in Shenzhen as an Example

作　　者：陈日飙 陈竹 尹名强 胡纹[2] 何宝杰 CHEN Ribiao;CHEN Zhu;YIN Mingqiang;HU Wen;HE Baojie

机构地区：[1]香港华艺设计顾问(深圳)有限公司 [2]重庆大学建筑城规学院

出　　处：《南方建筑》2023年第2期77-87,共11页South Architecture

基　　金：中建股份科技资助(CSCEC-2018-Z-14):全生命周期超高层建筑成套技术研究(一)。

摘　　要：完善风环境评估方法和技术路线的多元性和科学性,为实现城市低碳节能目标、促进气候适应性规划设计提供基础补充。以深圳后海中心区为实证对象,在“双循环”+“多尺度”嵌套的风环境评估技术路线下,构建基于“城市形态及通风节能”的双循环评估体系。研究得出用地属性对局地气候的敏感性差异,水域用地是最低影响的下垫面形式;日间工况与全天盛行风况存在显著区别,典型时段的风速风向表现凸出;显示4月是通风节能潜力最大的月份,可以降低能耗52.73%。多尺度的风环境评估方法可以突破原有单一侧边界条件的限制,从“城市形态及通风节能”两个角度,融合局地气候风环境边界条件,有利于完善规划设计阶段方案评估过程,提高设计方案效益,推动规划设计发展。The formation and development of the urban climate are closely related to urban construction.High-density urban construction has weakened the flowing wind field in the city,forming a typical urban static wind characteristic.Existing studies have proven that natural ventilation is conducive to improving the quality of human habitation,achieving climateadaptability planning and design,and low-carbon energy-saving goals.However,studies on the correlation between wind environment and urban morphology suffer from engineering and superficiality in assessing technical routes,insufficient attention to local climates,and improper use of urban wind environment boundaries.The Houhai Central District in Shenzhen is selected as the research object,and the wind environment assessment is taken as the mid-term part of urban planning and design.The doublecycle assessment system based on"urban form,ventilation,and energy conservation"is constructed under the technical route of wind environment assessment of"double cycle"+"multi-scale"nesting,and the local climate boundary condition of"ventilation and energy conservation"in typical time is strengthened.As an urban business district with obvious daytime work attributes,the Houhai Central District is studied in a multi-scale nested study using building morphology data,the meteorological data of the European Centre for Medium-Range Weather Forecasts(ECMWF),and the Meteorological Bureau of Shenzhen Municipality to drive the WRF model for the refined wind-field simulation to obtain the prevailing wind conditions of the Houhai Central District and the climate sensitivity differences of the urban land.The computational fluid dynamics(CFD)model of the Houhai Central District is established,and the high-precision numerical simulation results of the WRF model for the Houhai Central District are extracted as the initial wind-field conditions of the CFD model,and the data transfer between the WRF model and the CFD method is realized to complete the nested operations.The natural months suitable

关 键 词：城市形态 通风节能 风环境评估 多尺度 

分 类 号：TU984[建筑科学—城市规划与设计]