Outdoor Wind Environment Analysis Study Of An Irreguler Building Complex In A Coastal Campus

The accelerating urbanization and rising building density in contemporary society have led to a series of problems,including air pollution and urban heat island effect.University campus is an important part of the urban building complex,and its internal microenvironment condition deserves attention,while the building wind environment is an important part of the micro-environment.Creating a good and comfortable campus wind environment is beneficial to the health of teachers and students,and has a greater significance in constructing a comfortable,healthy and safe area for students’ activities and quantifying the degree to which people are affected by wind.This thesis starts from the basic theory of wind fields and wind environment research methods,and describes the concepts related to the typical effects of common winds.Then,the mainstream wind environment research methods are described in terms of theories and previous studies,and the research method of this paper is determined to adopt numerical simulation combined with partial field measurements.Immediately afterwards,a detailed description of the commonly used wind environment research methods is given based on the reading of previous studies.In the core chapter,the numerical simulation of the outdoor wind environment of the campus buildings of Central Academy of Fine Arts in Qingdao under four working conditions is firstly conducted,and the results of the simulation are analyzed and discussed on an overall and regional basis.The simulation results were also compared with the data from the wind and dust monitor set up at the project site to verify the accuracy and feasibility of the software while analyzing the data clouds.Finally,based on a comprehensive review of historical meteorological data,the distribution of the wind environment in the school district under extreme windy weather was investigated to provide a basis for wind prevention in the school district under special weather.Secondly,under the condition of opening windows for ventilation in summer,the outdoor wind environment also has a greater influence on the interior.As the building where students stay for the longest time on campus and the building is densely populated,the environmental comfort inside the university dormitory building is extremely important.In this study,we will use numerical simulation to simulate the thermal environment in the rooms on each floor of the dormitory building,and investigate the influence of outdoor wind environment on ventilation under the conditions of open windows in summer,and analyze the changes of temperature and ventilation in the rooms on each floor of the dormitory building when the windows are opened and closed.The data and clouds from the experiments were analyzed and summarized,and the main conclusions were:(1)The overall wind environment within the campus for working conditions Bx and Bd is better than the wind environment simulation data considering only the working conditions Ax and Ad of the campus building complex,and the winter and summer monsoon wind environment values for working conditions Bx and Bd are more ideal,but the narrow channel effect is serious in some areas.(2)In this study,the feasibility of numerical simulation for the study was verified to a certain extent by comparing and analyzing the actual data in the field and the derived data from the software.(3)Through numerical simulation of wind environment in the campus under abnormal windy weather,the wind distribution in the campus is found,which provides support for wind prevention under abnormal windy weather.(4)By simulating and analyzing the indoor thermal environment and ventilation of the dormitory building,it was found that the indoor thermal environment of the dormitory building was better.In the case of not opening the air conditioning cooling and external windows,the indoor thermal environment is best on the third floor;in the case of not opening the air conditioning cooling but opening the external windows for ventilation,the second floor is the best.(5)In the case of opening the external windows in summer,for most rooms,the cooling range is between 2.5～4℃,and the flow of outdoor wind plays a favorable role in the thermal environment inside the rooms,and the overall cooling effect is more significant.