Base On The CFD Of Microscale Urban Morphology Climate Responsive Design

With the acceleration of China's urbanization process,urban construction is changing from quantity to quality,judging from the perceptual to the rational argument,furthermore "people-oriented" ideas gradually become the soul of urban planning discipline.At the same time,global warming has caused many catastrophic climates such as high-temperature and heat wave,urban heat islands,air pollution and floods,and how to respond to climate change and mitigate climate problems by actively optimizing urban spatial form,thus creating a comfortable and harmonious human settlement.It has become an urgent challenge for the urban planning profession.With the continuous deep research of urban climate science in recent years,the western countries represented by Germany have achieved many achievements.In the past two decades,China has gradually carried out a large number of related research and practice,which provides a good foundation for this paper.However,there is still room for further improvement in the methods and strategies for designing micro-scale urban morphological climate responses.Based on summarizing the related theories of urban ecology,climatology and morphology,this paper analyzes the mutual coupling relationship between microclimate elements and urban forms,puts forward using computational fluid dynamics to urban form climate response to design the technical route,design process and design strategy research;Focus on the urban planning practice needs,from the "urban level","block level" and "architecture level",to analyzed and generalize micro-scale urban form climate responseive Strategies with CFD.In the “urban district” level micro climate analysis,the climate numerical experiments were carried out by coupling the weather forecasting model(WRF)and CFD with two different scales in the microclimate analysis.The high precision microclimate information is described under the premise of fully considering the real meteorological background.WRF is a mesoscale simulation technology in meteorology field,and the background meteorological parameter simulation of high grid precision is established by adjusting boundary conditions,physical scheme parameters and grid setting.In the "block" level micro climate analysis,analyses typical public space in the summer of Dalian Fisherman's Wharf area's ventilation with CFD numerical experiments,and presents the corresponding optimization strategyIn the "building" level micro climate analysis,taking Dalian Shengjing hospital scheme design project as example,analyze and interpret the external environment,volume and functional layout of the building with CFD numerical experiments,forthermore presents the optimization strategy.This study explores the method of climate responsive design with CFD in different level of urban planning,and verifies the practical of the method through the application of specific cases.The study integrates urban planning,architecture and climatology and other related disciplines,and summarizes the operational urban planning climate responsive system.