The Influence Of Hefei Huancheng Park On The Wind Environment Of The Old Urban Aera

The urbanization problem is also intensifying with the advancement of urbanization.The urban wind environment is closely related to the air quality of the environment and the quality of life of urban residents.Urban renewal can improve the living environment and slow down the heat island effect,and effectively improve the living comfort of the block.Due to the existing layout and complex space in the old urban area,it is easy to form a quiet wind area and a low wind speed area,which leads to the lack of air circulation,which in turn leads to many environmental problems such as heat island effect and smog.How to improve urban air circulation and build a healthy living environment through urban ventilation corridors arouses people's thinking and attention.Improving the urban outdoor wind environment,especially the wind environment in the old city residential area,is of great significance for improving the quality of life of residents.This paper takes the old urban area in Hefei Huancheng Park as the research object,according to the regional climate characteristics of Hefei,which is hot in summer and cold in winter,builds a model with computer numerical simulation technology,and establishes a technical system to optimize the old city renewal plan by means of wind environment simulation.The contents are as follows: Firstly,the wind environment characteristics of the old urban area in Hefei Huancheng Park are discussed from two aspects: theoretical analysis and actual measurement research.Then,based on the analysis of the status quo of the surrounding parks and the old urban area,five parks and green spaces in the surrounding parks of Hefei City are selected as key research areas,and six representative measurement paths in the area are selected to measure the old urban research area in different time periods on the spot.The temperature,humidity,wind speed and other indicators of the block are used to lay the foundation for the data simulation,and to construct the action mechanism of the park green space around the city on the wind environment.Then,through the CFD simulation technology,the wind environment is simulated and analyzed in the study area,and the problems existing in the wind environment in the old urban area of Hefei are considered,and the elements of the old urban building layout and the green space combination elements of the park around the city that affect the wind environment are summarized.Finally,on the basis of theoretical analysis,practical investigation and computer simulation analysis,it is concluded that optimizing the layout of buildings and green space can reduce temperature,increase humidity,and improve urban heat island and smog.Combined with the existing block texture to carry out local optimization and reconstruction,explore the wind environment optimization strategy of the old city of Hefei from the architectural space,blue-green space and other aspects,in order to realize the practical application of specific strategies in the layout of buildings and parks and green spaces in the old urban area of Hefei.Figure[57] table[7] reference[97]...