Research On The Influence Of Height Distribution Of High-rise Residential Districts On The Vertical Wind Environment In Harbin

With the continuous progress of our country’s society,economy and culture,the needs of the living environment in urban residents have changed from functionality to comprehensive comfort stage by stage.And the pleasant residential microclimate is a key element.As one of the important part of the microclimate,a pleasant residential wind environment has a strong positive impact on the urban human settlement environment,and it has become a hot issue studied by scholars in recent years.However,in current research on wind environment in residential areas,researchers tend to focus on pedestrian level,focusing on wind environment evaluation and optimization in a plane range.There are very few studies on vertical wind environment,and there are existing vertical wind environments.Most of the researches are also focused on wind resistance and other aspects on super high-rise buildings.In fact,buildings are affected by the wind environment in all directions.The vertical wind environment also has a considerable impact on the wind and cold resistance,energy saving and emission reduction of buildings.Therefore,it is also necessary to study the vertical wind environment.This article first summarized the research status of wind environment in residential areas at home and abroad,and determined that the high-rise residential areas in Harbin were the research objects,and the computer simulation was used as the research method.Secondly,through the data survey and statistical analysis of the existing high-rise residential areas in Harbin,five types of twelve current typical high-rise residential areas are summarized,and seven types of abstract models are established in accordance with relevant laws and regulations after screening.Thirdly,using Phoenics software and Tecplot software to carry out wind environment simulation before and after processing respectively,the abstract model is simulated and data statistical analysis under the typical winter wind conditions in Harbin,and finally the vertical change law of wind environment in high-rise residential areas And the influence of different height distributions on this law was explored.Studies have shown that the wind environment value on the building surface has a more obvious change law with the increase in height,and different height distributions have a certain impact on the change law and specific values.For Harbin’s winter weather conditions and wind environment requirements for high-rise residential areas,the high height distribution on both sides of the northwest is more in line with the requirements of building windproof and thermal insulation.The purpose of this research is to explore the changing laws of vertical wind environment and the influence mechanism of building height on vertical wind environment layout,summarize the scientific planning and layout methods of residential areas from the perspective of vertical wind environment,and guide the energy-saving and thermal insulation design of residential buildings.To provide new ideas in the future practice of residential planning in cold regions,and provide references for urban planning and construction in other regions.