Reserch On Identification Of City Wind Environment Simulation And City Ventilation Corridor

With the high temperature heat, air pollution, urban heat island effect, frequent haze aggravated climate issues have become increasingly prominent, the application research and practice of city climate in city planning has become an important topic of the current city planners and decision-makers of government. Which is proposed to solve the problem of ventilation ventilation city city corridor(i.e. wind corridor) of particular concern at home and abroad in recent years, many regions and city has carried out relevant research and construction, in order to promote the city by city air duct air circulation, so as to improve the city heat island effect, and reduce air pollution. Method of system study on ventilation corridor is an effective means of effective ventilation of the city. With the method of city ventilation research scale present different problems, study on City ventilation of different levels of how to link the less.The purpose of this research is through multi-scale ventilation simulation method, recognition method established city ventilation corridor system of a multi-scale linking up the. The latest achievements in meteorology and environmental science with practice of city living, to realize the exchange and fusion of interdisciplinary across borders. Through the simulation and recognition of different scale city comprehensive analysis of multi-scale, multi method of wind environment and gallery, research platform construction to improve the urban wind environment evaluation, and applications, to provide suggestions for Shenzhen city space planning.This article based on the study of the method of multiple scales well ventilated corridor, clear hierarchy relationship and system construction of urban ventilation. In this paper, through the analysis of different scale characteristics and application level software, starting from Shenzhen city’s overall ventilation corridor, gradually with to block and the building scale. In the use of WRF mode coupling urban canopy model of urban regional scale level, regional level analysis of urban ventilation condition; in middle district level, then GIS will use the ventilation problem is simplified the calculation results with the results of WRF comprehensive comparative analysis, get the analysis of regional ventilation corridor; at the micro block scale, application the method of CFD, calculating block ventilation conditions, identify ventilation corridor. With the development of computer computing ability enhancement, method and the possibility of more can be applied and research of Urban Ventilation corridor, taking Shenzhen city as an example of hope through different methods of multiple scales expansion test at a fixed in the city, hoping to provide some inspiration for new ideas or research in Urban Ventilation in the scholars.