Research On The Wind Environment Test And Analysis Of Open-courtyard Buildings

As the buffer space of building indoor and outdoor,courtyard of building can create a relatively mild climate,maintain the relative stability of building thermal environment,and create the open space for the people,so it is widely used in all kinds of buildings.The wind environment of the building has important influence on the safety and comfort of its use.Since 1860 s,the domestic and foreign scholars have carried out a lot of research on the building wind environment.In view of the research of the space environment of the courtyard and the wind environment of building,it is lack of deep research on the environment of the courtyard.The wind environment in the courtyard is the foundation of the courtyard thermal environment,which influences the natural ventilation,heat preservation and energy saving of buildings and gardens.This paper will based on the existing courtyard as the prototype,research the changes of wind environment in open courtyard with building shapes.The research object is the experimental building courtyard in Hebei University of Technology,which is surrounded by three sides and has no roof above the courtyard,at the entrance to the courtyard set bridges,pillars and other components.The research work is based on the existing research,through the analysis of the existing domestic and international literature,select the appropriate research methods.The combination of field measurement and numerical simulation of wind environment test and analysis is used to study the wind environment of the experimental building of Hebei University of Technology.Firstly,through field measurement of wind speed and temperature and humidity in the countryard,the distribution of wind field in the yard is analyzed.Secondly,change the influence factor singly and numerical simulated the wind field,contrast the wind speed and air age distribution in the country under different orientation,season,the height of the building,the courtyard of the length to width ratio,courtyard entrance to explore how the related factors affects the courtyard wind environment.Through the study,the influence of the change of the parameters of the wind environment is analyzed.After the quantitative analysis,the optimal values of the parameters,the relative preferable level,and the changes of the different conditions are obtained.The research results will provide a reference for architects’ design work,which will help to control the wind environment in the design stage,and reduce the generation of severe wind environment.